No More Learning

Such are the fundamental principles of Mendelism; but on them was early
grafted a theoretical structure due mainly to the German zoologist,
August Weismann. To understand his part in the story, we must advert to
that much mooted and too often misunderstood problem furnished by the
chromosomes. (See Fig. 46. ) These little rods of easily stained
material, which are found in every cell of the body, were picked out by
Professor Weismann as the probable carriers of heredity. With remarkable
acuteness, he predicted their behavior at cell-division, the intricate
nature of which is usually the despair of every beginner in biology.
When Mendelian breeding, in the early years of this century, showed
temporary pairing and subsequent separation of units in the
germ-cell, it was soon realized that the observed facts of breeding
fitted to a nicety the observed facts (predicted by Weismann) of
chromosome-behavior; for at each cell-division the chromosomes, too,
pair and separate again. The observed behavior of transmitted characters
in animals and plants followed, in so many cases, the observed behavior
of the chromosomes, that many students found it almost impossible to
believe that there was no connection between the two, and Dr. Weismann's
prediction, that the chromosomes are the carriers of heredity, came to
be looked on as a fact, by many biologists.

But when so much of Professor Weismann's system was accepted, other
parts of it went along, including a hypothetical system of "determiners"
in the chromosome, which were believed to determine the development of
characters in the organism. Every trait of an animal or plant, it was
supposed, must be represented in the germ-plasm by its own determiner;
one trait, one determiner. Did a notch in the ear run through a
pedigree? Then it must be due to a determiner for a notch in the ear in
the germ-plasm. Was mathematical ability hereditary? Then there must be
a determiner, the expression of which was mathematical ability.

For a while, this hypothesis was of service in the development of
genetics; some students even began to forget that it was a hypothesis,
and to talk as if it were a fact. But the exhaustive tests of
experimental breeding of plants and animals have long caused most of the
advanced students of genetics to drop this simple hypothesis.

In its place stands the factorial hypothesis, evolved by workers in
America, England, and France at about the same time. As explained in
Chapter V, this hypothesis carries the assumption that every visible
character is due to the effects of not one but many factors in the
germ-cell.

In addition to these fundamentals, there are numerous extensions and
corollaries, some of them of a highly speculative nature. The reader who
is interested in pursuing the subject farther must turn to one of the
text-books on Mendelism.

In plant-breeding a good deal of progress has been made in the exact
study of Mendelian heredity; in animal breeding, somewhat less; in human
heredity, very little. The reason is obvious: that experiments can not
be made in man, and students must depend on the results of such matings
as they can find; that only a very few offspring result from each
mating; and that generations are so long that no one observer can have
more than a few under his eyes. These difficulties make Mendelian
research in man a very slow and uncertain matter.

Altogether, it is probable that something like a hundred characters in
man have been pointed out as inherited in Mendelian fashion. A large
part of these are pathological conditions or rare abnormalities.

But the present writers can not accept most of these cases. It has been
pointed out in Chapter V that there are good reasons for doubting that
feeble-mindedness is inherited in a simple Mendelian fashion, although
it is widely accepted as such. We can not help feeling that in most
cases heredity in man is being made to appear much simpler than it
really is; and that particularly in mental characters, analysis of
traits has by no means reached the bottom.

If we were asked to make out a list of characters, as to the Mendelian
inheritance of which there could be little doubt, we would hardly be
able to go farther than the following:

The sex-linked characters (one kind of color-blindness, hemophilia, one
kind of night-blindness, atrophy of the optic nerve, and a few other
rare abnormalities).

Albinism. This appears to be a recessive, but probably involves multiple
allelomorphs in man, as in other animals.

Brachydactyly, apparently a dominant. This is so much cited in
text-books on Mendelism that the student might think it is a common
character. As a fact, it is extremely rare, being found in only a few
families. The similar trait of orthodactyly or symphalangism, which
likewise appears to be a good Mendelian dominant, seems to exist in only
one family. Traits like these, which are easily defined and occur very
rarely, make up a large part of the cases of probably Mendelian
heredity. They are little more than curiosities, their rarity and
abnormal nature depriving them of evolutionary significance other than
to demonstrate that Mendelian heredity does operate in man.

White blaze in the hair or, as it might better be called to show its
resemblance to the trait found in other mammals, piebaldism. A rather
rare dominant. [204]

Huntington's Chorea, which usually appears to be a good dominant,
although the last investigators (Muncey and Davenport) found some
unconformable cases.

A few abnormalities, such as a premature graying of the hair (one family
cited by K. Pearson) are well enough attested to be admitted. Many
others, such as baldness, are probably Mendelian but not yet
sufficiently supported by evidence.

None of these characters, it will be observed, is of much significance
eugenically. If the exact manner of inheritance of some of the more
important mental and physical traits were known, it would be of value.
But it is not a prerequisite for eugenic action. Enough is known for a
working program.

To sum up: the features in the modern view of heredity, which the reader
must keep in mind, are the following:

1. That the various characters which make up the physical constitution
of any individual plant or animal are due to the action (concurrently
with the environment, of course) of what are called, for convenience,
factors, separable hypothetical units in the germ-plasm, capable of
independent transmission.

2. That each visible character is due to the cooperative action of an
indefinitely large number of factors; conversely, that each of these
factors affects an indefinitely large number of characters.




APPENDIX E

USEFUL WORKS OF REFERENCE


The most complete bibliography is that published by the State Board of
Charities of the State of New York (_Eugenics and Social Welfare
Bulletin_ No. III, pp. 130, Albany, 1913).

An interesting historical review of eugenics, with critical comments on
the literature and a bibliography of 100 titles, was published by A. E.
Hamilton in the _Pedagogical Seminary_, Vol. XXI, pp. 28-61, March,
1914.

Much of the important literature of eugenics has been mentioned in
footnotes. For convenience, a few of the books which are likely to be
most useful to the student are here listed:

GENETICS AND EUGENICS, by W. E. Castle. Harvard University
Press, Cambridge, 1916.

HEREDITY AND ENVIRONMENT IN THE DEVELOPMENT OF MEN, by Edwin G.
Conklin. Princeton University Press, 1915.

HEREDITY IN RELATION TO EUGENICS, by C. B. Davenport, Henry
Holt and Co. , New York, 1911.

ESSAYS IN EUGENICS, by Francis Galton. Eugenics Education
Society, London, 1909.

BEING WELL-BORN, by Michael F. Guyer. Indianapolis,
Bobbs-Merrill Co. , 1916.

THE SOCIAL DIRECTION OF HUMAN EVOLUTION, by W. E. Kellicott.
New York, 1911.

THE PHYSICAL BASIS OF SOCIETY, by Carl Kelsey. New York, D.
Appleton & Co. , 1916.

EUGENICS, by Edward Schuster. Collins' Clear Type Press, London
and Glasgow, 1913.

HEREDITY, by J. Arthur Thompson. Edinburgh, 1908.

GENETICS, by Herbert E. Walter. The Macmillan Co. , New York,
1913.

AN INTRODUCTION TO EUGENICS, by W. C. D. Whetham and C. D.
Whetham. Macmillan and Co. , London, 1912.

HEREDITY AND SOCIETY, by W. C. D. Whetham and C. D. Whetham.
Longmans, Green & Co. , London, 1912.

THE FAMILY AND THE NATION, by W. C. D. Whetham and C. D.
Whetham. Longmans, Green & Co. , London, 1909.

The publications of the Galton Laboratory of National Eugenics,
University of London, directed by Karl Pearson, and of the Eugenics
Record Office, Cold Spring Harbor, Long Island, N. Y. , directed by C. B.
Davenport, furnish a constantly increasing amount of original material
on heredity.

The principal periodicals are the _Journal of Heredity_ (organ of the
American Genetic Association), 511 Eleventh St. , N. W. , Washington, D.
C. (monthly); and the _Eugenics Review_ (organ of the Eugenics Education
Society), Kingsway House, Kingsway, W. C. , London (quarterly). These
periodicals are sent free to members of the respective societies.
Membership in the American organization is $2 a year, in the English 1
guinea a year, associate membership 5 shillings a year.




APPENDIX F

GLOSSARY


ACQUIRED CHARACTER, a modification of a germinal trait after
cell fusion. It is difficult to draw a line between characters that are
acquired and those that are inborn. The idea involved is as follows: in
a standard environment, a given factor in the germ-plasm will develop
into a trait which varies not very widely about a certain mean. The mean
of this trait is taken as representing the germinal trait in its typical
condition. But if the environment be not standard, if it be considerably
changed, the trait will develop a variation far from the mean of that
trait in the species. Thus an American, whose skin in the standard
environment of the United States would be blonde, may under the
environment of Cuba develop into a brunette. Such a wide variation from
the mean thus caused is called an acquired character; it is usually
impressed on the organism after the germinal trait has reached a full,
typical development.

ALLELOMORPH (one another form), one of a pair of factors which
are alternative to each other in Mendelian inheritance. Instead of a
single pair, there may be a group of "multiple allelomorphs," each
member being alternative to every other member of the group.

ALLELOMORPHISM, a relation between two or more factors, such
that two which are present in one zygote do not both enter into the same
gamete, but are separated into sister gametes.

BIOMETRY (life measure), the study of biology by statistical
methods.

BRACHYDACTYLY (short-finger), a condition in which the bones,
particularly of the fingers and toes, fail to grow to their normal
length. In well-marked cases one of these is a reduction from three
phalanges or joints to two.

CHARACTER (a contraction of "characteristic"), a term which is
used, often rather vaguely, to designate any function, feature, or organ
of the body or mind.

CHROMOSOME (color body, so called from its affinity for certain
stains), a body of peculiar protoplasm, in the nucleus of the cell. Each
species has its own characteristic number; the cells of the human body
contain 24 chromosomes each.

CONGENITAL (with birth), present at birth. The term fails to
distinguish between traits which are actually inherited, and
modifications acquired during prenatal life. In the interest of clear
thinking its use should be avoided so far as possible.

CORRELATION (together relation), a relation between two
variables in a certain population, such that for every variation of one,
there is a corresponding variation of the other. Mathematically, two
correlated variables are thus mutually dependent. But a correlation is
merely a statistical description of a particular case, and in some other
population the same two variables might be correlated in a different
way, other influences being at work on them.

CYTOLOGY (cell word), the study of the cell, the constituent
unit of organisms.

DETERMINER (completely end), an element or condition in a
germ-cell, supposed to be essential to the development of a particular
quality, feature, or manner of reaction of the organism which arises
from that germ-cell. The word is gradually falling into disuse, and
"factor" taking its place.

DOMINANCE (mastery), in Mendelian hybrids the capacity of a
character which is derived from only one of two generating gametes to
develop to an extent nearly or quite equal to that exhibited by an
individual which has derived the same character from both of the
generating gametes. In the absence of dominance the given character of
the hybrid usually presents a "blend" or intermediate condition between
the two parents.

DYSGENIC (bad origin), tending to impair the racial qualities
of future generations; the opposite of eugenic.

ENDOGAMY (within mating), a custom of some primitive peoples,
in compliance with which a man must choose his wife from his own group
(clan, gens, tribe, etc. ).

EUGENIC (good origin), tending to improve the racial qualities
of future generations, either physical or mental.

EUTHENIC (good thriving), tending to produce beneficial
acquired characters or better conditions for people to live in, but not
tending (except incidentally and indirectly) to produce people who can
hand on the improvement by heredity.

EVOLUTION (unroll), ORGANIC, the progressive change of
living forms, usually associated with the development of complex from
simple forms.

EXOGAMY (out mating), a custom of primitive peoples which
requires a man to choose a wife from some other group (clan, gens,
tribe, etc. ) than his own.

FACTOR (maker), a name given to the hypothetical _something_,
the independently inheritable element in the germ-cell, whose presence
is necessary to the development of a certain inherited character or
characters or contributes with other factors to the development of a
character. "Gene" and "determiner" are sometimes used as synonyms of
factor.

FEEBLE-MINDEDNESS, a condition in which mental development is
retarded or incomplete. It is a relative term, since an individual who
would be feeble-minded in one society might be normal or even bright in
another. The customary criterion is the inability of the individual,
because of mental defect existing from an early age, to compete on equal
terms with his normal fellows, or to manage himself or his affairs with
ordinary prudence. American students usually distinguish three grades of
mental defect: Idiots are those who are unable to take care of
themselves, even to the extent of guarding against common physical
dangers or satisfying physical needs. Their mentality does not progress
beyond that of a normal two-year-old child. Imbeciles can care for
themselves after a fashion, but are unable to earn their living. Their
mental ages range from three to seven years, inclusive. Morons, who
correspond to the common acceptation of the term feeble-minded, "can
under proper direction become more or less self-supporting but they are
as a rule incapable of undertaking affairs which demand judgment or
involve unrestricted competition with normal individuals. Their
intelligence ranges with that of normal children from seven to twelve
years of age. " There is necessarily a considerable borderline, but any
adult whose intelligence is beyond that of the normal twelve-year-old
child is usually considered to be not feeble-minded.

GAMETE (mate), a mature germ-cell; in animals an ovum or
spermatozoon.

GENETICS (origins), for a long time meant the study of
evolution by experimental breeding and was often synonomous with
Mendelism. It is gradually returning to its broader, original meaning of
the study of variation and heredity, that is, the origin of the
individual's traits. This broader meaning is preferable.

GERMINAL (sprig), due to something present in the germ-cell. A
trait is germinal when its basis is inherited,--as eye color,--and when
it develops with nothing more than the standard environment; remaining
relatively constant from one generation to another, except as influenced
by reproduction.

GERM-PLASM (sprig form), mature germ-cells and the living
material from which they are produced.

HAEMOPHILIA (blood love), an inability of the blood to clot. It
thus becomes impossible to stop the flow of blood from a cut, and one
who has inherited haemophilia usually dies sooner or later from
haemorrhage.

HEREDITY (heirship), is usually considered from the outside,
when it may properly be defined as organic resemblance based on descent,
or the correlation between relatives. But a better definition, based on
the results of genetics, looks at it as a mechanism, not as an external
appearance. From this point of view, heredity may be said to be "the
persistence of certain cell-constituents (in the germ-cells) through an
unending number of cell-divisions. "

HETEROZYGOTE (different yolk), a zygotic individual which
contains both members of an allelomorphic pair.

HOMOZYGOTE (same yolk), an individual which contains only one
member of an allelomorphic pair, but contains that in duplicate, having
received it from both parents. A homozygous individual, having been
formed by the union of like gametes, in turn regularly produces gametes
of only one kind with respect to any given factor, thus giving rise to
offspring which are, in this regard, like the parents; in other words,
homozygotes regularly "breed true. " An individual may be a homozygote
with respect to one factor and a heterozygote with respect to another.

HORMONES (chain), the secretions of various internal glands,
which are carried in the blood and have an important specific influence
on the growth and functioning of various parts of the body. Their exact
nature is not yet understood.

INBORN usually means germinal, as applied to a trait, and it is
so used in this book.
Strictly speaking, however, any trait which
appears in a child at birth might be called inborn, and some writers,
particularly medical men, thus refer to traits acquired in prenatal
life. Because of this ambiguity the word should be carefully defined
when used, or avoided.

INHERENT (in stick), as used in this book, is synonymous with
germinal.

INDUCTION (in lead), a change brought about in the germ-plasm
with the effect of temporarily modifying the characters of an
individual produced from that germ-plasm; but not of changing in a
definite and permanent way any such germ-plasm and therefore any
individual inherited traits.

INNATE (inborn), synonymous with inborn.

LATENT (lie hidden), a term applied to traits or characters
whose factors exist in the germ-plasm of an individual, but which are
not visible in his body.

LAW, in natural science means a concise and comprehensive
description of an observed uniform sequence of events. It is thus quite
different from the law of jurists, who mean a rule laid down for the
guidance of an intelligent being, by an intelligent being having power
over him.

MENDELISM, a collection of laws of heredity (see Appendix D)
so-called after the discoverer of the first of them to become known;
also the analytical study of heredity with a view to learning the
constitution of the germ-cells of animals and plants.

MENDELIZE, to follow Mendel's laws of inheritance.

MORES (customs), the approved customs or unwritten laws of a
people; the conventions of society; popular usage or folk-ways which are
reputable.

MUTATION (change), has now two accepted meanings: (1) a
profound change in the germ-plasm of an organism such as will produce
numerous changes in its progeny; and (2) a discontinuous heritable
change in a Mendelian factor. It is used in the first sense by De Vries
and other "mutationists" and in the second sense by Morgan and other
Mendelists; confusion has arisen from failure to note the difference in
usage.

NORMAL CURVE, the curve of distribution of variations of
something whose variations are due to a multiplicity of causes acting
nearly equally in both directions. It is characterized by having more
individuals of a mediocre degree and progressively fewer above and below
this mode.

NUCLEUS (little nut), a central, highly-organized part of every
living cell, which seems to play a directive role in cell-development
and contains, among other things, the chromosomes.

PATENT (lie open), a term applied to traits which are
manifestly represented in the body as well as the germ-plasm of an
individual. The converse of "latent. "

PROBABILITY CURVE, the same as normal curve. Also called a
Gaussian curve.

PROTOPLASM (first form), "the physical basis of life"; a
chemical compound or probably an emulsion of numerous compounds. It
contains proteins which differ slightly in many species of organism. It
contains carbon, hydrogen, oxygen, nitrogen, sulphur, and various salts,
but is so complex as to defy exhaustive analysis.

PSYCHIATRY (soul healing), the study of diseases of the mind.

RECESSIVE (draw back), the converse of dominant; applied to one
of a pair of contrasted Mendelian characters which can not appear in the
presence of the other.

REGRESSION (back go), the average variation of one variable for
a unit variation of a correlated variable.

SEGREGATION (aside flock), (1) as used in eugenics means the
policy of isolating feeble-minded and other anti-social individuals from
the normal population into institutions, colonies, etc. , where the two
sexes are kept apart. (2) The term is also used technically in genetics,
to refer to the discontinuity of the variation of characteristics
resulting from the independent distribution of factors before or at the
time of formation of the gametes.

SELECTION (apart pick), the choice (for perpetuation by
reproduction) from a mixed population, of the individuals possessing in
common a certain character or a certain degree of some character. Two
kinds of selection may be distinguished: (1) natural selection, in which
choice is made automatically by the failure to reproduce (through death
or some other cause) of the individuals who are not "fit" to pass the
tests of the environment (vitality, disease resistance, speed, success
in mating, or what not); and (2) artificial selection, in which the
choice is made consciously by man, as a livestock breeder.

SEX-LIMITED, a term applied to traits which differ in the two
sexes, because influenced by the hormones of the reproductive glands.
Example, the beard.

SEX-LINKED, a term applied to traits which are connected with
sex _accidentally_ and not physiologically in development. The current
explanation is that such traits happen to be in the same chromosome as
the determiner of maleness or femaleness, as the case may be.
Color-blindness is the classical example in man.

SEXUAL SELECTION, the conscious or unconscious preference by
individuals of one sex, or by that sex as a whole, for individuals of
the other sex who possess some particular attribute or attributes in a
degree above or below the average of their sex. If the deviation of the
chosen character is in the same direction (plus or minus) as in the
chooser, the mating is called assortative; if in one direction
independent of the characteristic of the chooser, it is called
preferential.

SOMA (body), the body as distinguished from the germ-plasm.
From this point of view every individual consists of only two
parts,--germ-plasm and soma or somatoplasm.

TRAIT, a term used by geneticists as a synonym of "character. "

UNIT-CHARACTER, in Mendelian heredity a character or
alternative difference of any kind, which is apparently not capable of
subdivision in heredity, but is inherited as a whole, and which is
capable of becoming associated in new combinations with other
characters. The term is now going out of use, as it makes for clearer
thinking about heredity to fix the attention on the factors of the
germ-cells instead of on the characters of the adult.

VARIATION, a deviation in the size, shape, or other feature of
a character or trait, from the mean or average of that character in the
species.

VESTIGIAL (footstep), a term applied to a character which at
some time in the evolutionary history of the species possessed
importance, or functioned fully, but which has now lost its importance
or its original use, so that it remains a mere souvenir of the past, in
a degenerated condition. Example, the muscles which move a man's ears.

ZYGOTE (yolk), the fertilized egg-cell; the united cell formed
by the union of the ovum and spermatozoon after fertilization.

ZYMOTIC, caused by a microorganism,--a term applied to
diseases. Example, tuberculosis.




INDEX


A

Abderholden, E. , 422

Acquired character, 437

Administrative aspects, 194

Adult mortality, 345

Afghans, 321

Africa, 290, 291

Agriculture, 307

Aguinaldo, E. , 314

Aims of eugenics, 152

Alabama, 187, 202, 296

Alaska, 187

Albinism, 433

Alcohol, 44, 48, 49, 130

Alcoholism, 213, 302

Aleurone, 104

Allelomorphism, 437

Allelomorphs, 108, 427, 437

Alpine Type, 427

America, 432

American Breeders Assn. , 154, 194

American Breeders Magazine, 154

American Prison Assn. , 182

American Genetic Assn. , 154, 277

American stock, 258, 424

Americans, 427, 428

American-Chinese Marriages, 313

Amherst College, 255, 266

Amoy, 315

Ancestral Inheritance Law, 112

Anglian, 426

Anglo-Saxon, 426

Anthropological Soc. of Denmark, 155

Apartment houses, 377

Appearance, 219, 221

Appropriate opportunity, 366

Arabs, 230, 280

Argentina, 326

Aristocracy, 362

Aristodemocracy, 362

Aristotle, 32

Arizona, 187

Arkansas, 241

Armenians, 299, 302, 427

Army, American, 83

Arnold, M. , 394

Arsenic, 63

Art, 96

Asiatic immigration, 311

Asiatic Turkey, 299

Assortative mating, 126, 211

Athenians, 133

Atrophy of optic nerve, 433

Atwater, W. O. , 422

Austria, 137, 155

Australian, 129

Australian marriages, 222

Automobile, effect of 377


B

Baby saving campaign, 408

Bachelors, tax on, 353

Back to the farm movement, 355

Backward children, 188

Bahama Islands, 203

Baker, O. E. , 6

Baltzly, A. , 327

Banker, H. J. , 267, 245

Banns, 197

Barrington, A. , 13

Batz, 207

Baur, E. , 104

Bean and Mall, 285

Beans, Fig. 13.

Beeton, M. , 144, 404, 408, 411

Beggars, 302

Belgium, 138, 155, 324

Bell, A. G. , 144, 183, 226, 345, 347, 350, 402, 407, 411

Bentham, J. , 165

Berlin, 140

Bermuda, 205

Bertholet, E. , 57

Bertillon, J. , 140

Besant, A. , 269

Better babies movement, 155

Bezzola, D. , 56

Billings, W. C. , 313

Binet tests, 287

Biometric method, 31

Biometry, 437

Birth control, 269

Bisexual societies, 234

Bismarck, von, O. E. L. , 422

Blakeslee, A. F. , Figs. 2, 3, 13, 14

Blascoe, F. , 282

Bleeders, 38

Blind, 156

Blindness, 32

Blucher, von G. L. , 321

Blumer, J. C. , 244

Boas, F. , 41, 282, 283

Boer War, 321

Boer-Hottentot mulattoes, 300

Body-plasm, 27

Bohemians, 311, 427

Boston, Mass. , 261, 182

Boveri, T. , 27

Brachybioty, 409

Brachycephalic heads, 427

Brachydactyly, 433, 437, Fig. 17

Bradlaugh, C. , 269

Brazil, 325

Breton race, 273

Bridges, C. B. , 101

Brigham Young College, 219

British, 427

British Columbia, 305

British Indian immigration, 312

Bruce, H. A. , 23

Bryn Mawr College, 240, 263

Burris, W. P. , 97


C

Caesar, J. , 179, 207

Caffeine, 45

California, 172, 192

California University, 100

Cambridge graduates, 428

Cambridge, Mass. , 261

Cape Cod, 206

Carnegie Institution of Washington, 154

Carnegie, Margaret Morrison, School, 278

Carpenter, E. , 379

Carver, T. N. , 305, 367

Castle, C. S. , 243

Castle, W. E. , 87, 100, 105, 108, 300, 419, 435, Fig. 20

Catlin, G. , 130

Cattell, J. McK. , 20, 21, 268, 269

Cavour, C. B. , 19

Celibacy, 173

Celtic, 41

Celto-Slav Type, 427

Central Europe, 427

Ceylon, 129

Character, 219, 221, 437

Charm and taboo, 395

Chastity, 251, 386

Chicago, Ill. , 182, 261

Chicks, 47

Child bearing, Effect of, 346

Child Labor, 368

Childless wives, 268

Child mortality, 403, 407

Children surviving per capita, 267

China, 20, 137, 274

Chinese, 315, 397, Fig. 5

Chinese immigration, 321

Chorea, Huntingdon's, 109, 433

Christianity, 171, 394

Chromosomes, 87, 431, 437

Church acquaintances, 234

Civic Club (Pittsburgh, Penn. ), 371

Civil War, 268, 301, 321, 326, 402

Cleopatra, 207

Climate, 42

Cobb, M. V. , 96

Co-education, 267, 383

Coefficient of correlation, 212

Coercive means, 184

Cold Spring Harbor, 100

Coldness, 251

Cole, L. J. , 45, 51, 63, Fig. 7

Collateral inheritance, 404

College women, 241

Collins, G. N. , 104

Colonial ancestry, 426

Colony plan, 188

Color line, 280

Color-blindness, 109, 433

Columbus, C. , 132

Columbia, District of, 187

Columbus, Ohio, 261

Columbia University, 10, 41, 100, 278

Combemale, 44

Compulsory education, 369

Confederate Army, 323

Congenital, 438

Conklin, E. G. , 435

Connecticut, 76, 128, 192, 261, 326

Connecticut Agricultural College, 82, Fig. 14

Consanguinity, 207

Conscription, 319

Continuity of germ-plasm, 29

Controlled association tests, 288

Cook, O. F. , 356

Corn, Fig. 2

Cornell Medical College, 45

Correlation, 13, 212, 438

Cost of clothing, 274

Cost of domestic labor, 275

Cost of food, 274

Cost of medical attention, 275

Courtis, S. A. , 77

Cousins, 202

Criminals, 158, 182, 192

Croatians, 427

Crum, Frederick S. , 259

Cushing, H. , 102

Cynical attitude, 249

Cytology, 438


D

Danes, 426

Dalmatians, 311

Dance acquaintances, 234

Dark family, 168

Darwin, C. , 20, 21, 25, 68, 69, 117, 134, 147, 151, 174, 208, 214, 334

Darwinism, 214

Davenport, C. B. , 66, 154, 159, 182, 202, 205, 208, 246, 338, 341, 342,
348, 349, 433, 435

Davies, Maria Thompson, 235

Deaf, 157

Deafness, 32, 154

Declaration of Independence, 75

Declining birth rate, 237, 256, 268, 400

Defective germ-plasm, 194

Defectives, 302

Definition of eugenics, 147, 152

Degenerate persons, 193

Delaware, 187

Delayed marriage, 217

Delinquents, 302

Demme, R. , 56

Democracy, 360

Denmark, 137

Dependents, 302

Desirability of Restrictive Eugenics, 167

Destitute classes, 214

Determiners, 432, 438

Differences among men, 75

Diffloth, P. , 222

Diseases, 38

Disease resistance, 402

Disposition, 219, 221

Distribution, 307

District of Columbia, 187

Divorce, 201

Dolichocephalic heads, 427

Doll, E. A. , 421

Dominance, 438

Dominant, 433

Dress, 219, 221

Drinkwater, 342

Drosophila, 101

Drug fiends, 193

Drunkenness, 389

Dublin, L. I. , 400

Dubois, P. , 23, 24

DuBois, W. E. B. , 295

Duncan, J. M. , 247

Duncan, F. N. , 102, Fig. 17

Dugdale, R. L. , 159

Durant scholarship, 262

Dyer family, 206

Dynamic evolution, 421

Dynamic of manhood, 223

Dysgenic, definition of, 438

Dysgenic types, 176


E

Earle, E. L. , 94

Early marriages, 247

Eastern Europe, 427

East, E. M. , 104

East north central states, 358

East south central states, 358

Ebbinghaus tests, 288

Economic determinism, 365

Economic equality of sexes, 380

Economic status, 250

Economic standing of parents, 370

Edinburgh, 57

Education, 219, 221

Education, compulsory, 368

Education and race suicide, 253

Edwards, J. , 161

Egypt, 206

Egyptian, 285, Fig. 6

Elderton, E. M. , 10, 55, 57, 60, 122, 153, 413

Elderton, W. P. , 124

Elevation of standards, 277

Ellis, H. , 96, 224, 379

Ellis Island, 302, 303, 427

Emancipation of women, 364

Emerson, R. A. , 104

Endogamy, 222, 438

England, 15, 16, 121, 122, 138, 237, 381, 427, 432

English, 259, 311, 321, 426, 427, 428

Epilepsy, 58, 79

Epileptics, 193, 302

Eskimo, 49, 127

Estabrook, A. H. , 143, 159, 168

Equalitarianism, 362

Equality, 229

Equality of opportunity, 366

Equal pay for equal work, 380

Essence of Mendelism, 429

Eugenic aspect of specific reforms, 352

Eugenic laws, 191

Eugenic marriages, 352

Eugenics and euthenics, 438

Eugenics Education Society, 153

Eugenics movement, 147

Eugenics registry, 350

Eugenics Record Office, 153, 194, 202, 348, 349, 436

Eugenics Review, 436

Eugenics and social welfare, Bulletin, 435

Euthenics, 155, 415, 416, 417, 438

Euthenics, eugenics and, 402

Eye, 59

Evolution, 438

Exogamy, 22, 438


F

Facial attractiveness, 215

Fairchild, H. P. , 308

Family alignment, 229

Faraday, M. , 334

Farrabee, W. C. , 132

Fecundal selection, 137

Feebly inhibited, 182

Feeble minded, 157, 172, 302

Feeble-mindedness, 71, 176

Fere, C. S. , 44

Fernandez brothers, 314

Ferguson, G. O. , Jr. , 287, 288

Fertility, relative, 247

Filipinos, 315

Financial aspect, 173

Financial success, 219

Finger prints, Fig. 25

Finger tip, Figs. 21, 22

Finns, 299, 302, 311

Fishberg, M. , 126

Florida, 187

Foot, Egyptian, Fig. 6

Foreign-born, 238

Formal social functions, 236

Foster, M. , 29

France, 138, 155, 206, 237

Franco-Prussian war, 321

Franklin, B. , 230

Frederick the Great, 19

Fredericksburg, Va. , 288

Freiburg, University, of, 125

French-Canadians, 259

French revolution, 18

Freud, S. , 213


G

Gallichan, W. , 252

Galton, Eugenics Laboratory, 153, 349

Galton, F. , V, 2, 5, 6, 8, 9, 10, 15, 16, 89, 90, 95, 99, 110, 111,
112, 113, 147, 148, 151, 152, 162, 222, 228, 230, 247, 342, 435

Galton Laboratory of National Eugenics, 269, 436

Galton-Pearson law, 113, 114

Gamete, 439

Garibaldi, G. , 19

Garrison, W. L. , 295, 296

Genealogical Record Office, 402, 405, 407, 409, 411, 412

Genealogy and eugenics, 329, 439

Genesis, 64

Genetics, 340, 439

Genius, hereditary, 151

George, F. O. , 234

Georgia, 187

Geographical distribution, 261

German, 35, 259, 280, 311

German society for race hygiene, 163

Germany, 20, 137, 155, 299, 360

Germinal, 439

Germ-plasm, 25, 429, 440

Ghetto, 305

Gifted families, 213

Gillette, J. M. , 356, 358, 359

Gilman, C. P. , 378

Gilmore, C. F.