A 6 5 6 7 8 4 4 7 B 6 8 8 8 8 7 6 5
1 6 7 6 5 7 6 5 4
2 4 3 1 5 5 6 4 5
3 3 1 4 5 3 4 4 3
4 5 0 3 4 2 1 3 1
5 3 0 4 2 1 3 3 0
6 2 1 4 2 2 1 1 1
7 1 0 3 1 1 1 2 0
8 0 0 1 0 0 0 2 3
9 0 0 0 1 1 0 0 0
10 0 0 1 0 2 1 1
11 0 0 0 3 0 0
12 0 0 0 0 0
13 0 0 0 0
14 0
I have records for four generations in the 200 line and for three generations in the 400 line.[1] As the results are practically the same for each, I shall present the detailed records for the former group alone. In Table 53 are to be found the number of errors made in successive series of ten tests each by the various individuals of the 200 line which were trained in this experiment. The most careful examination fails to reveal any indication of the inheritance of a tendency to avoid the black box. No. 240, in fact, chose the black box more frequently in the preference series than did No. 210, and he required thirty more tests for the establishment of a perfect habit than did No. 210. Apparently descent from individuals which had thoroughly learned to avoid the black box gives the dancer no advantage in the formation of a white-black discrimination habit. There is absolutely no evidence of the inheritance of this particular individually acquired form of behavior in the dancer.
[Footnote 1: This experiment was interrupted by the death of the animals of both lines of descent.]
INDEX
Abnormal dancers. Acquired forms of behavior. Act, useless, repeated. Activity, periods of. Affirmation, choice by. Age, peculiarities; maximum age; and intelligence. Albino cat; dog. Alexander and Kreidl, young dancer; behavior; tracks of mice; behavior in cyclostat; behavior of white mouse and dancer; structure of ear; deafness. Allen, G. M., drawing of dancer; heredity in mice. Alleys, width of, in labyrinths. Amyl acetate for photometry. Anatomy of dancer. Animals, education of. Appuun whistles. Audition. See Hearing. Averages, dangers in.
Baginsky, B., model of ear of dancer.
Bateson, W., breeding experiments.
Behavior, of dancer;
inheritance of;
when blinded;
equilibration;
dizziness;
structural bases of;
of young;
changes in;
useless acts;
under experimental conditions;
in indiscriminable conditions;
value of sight;
in labyrinth experiments;
modifiability of;
history of;
explanations of;
individual differences in.
Blinded dancers, behavior of.
Blue-orange tests;
blue-red tests;
blue-green tests;
blue-green blindness.
Bradley papers.
Brain, structure of.
Breeding of dancers.
Brehm, A. E., "Tierleben".
Brightness vision;
preference;
check experiments;
relation to color vision.
Cages for dancers.
Candle meter.
Candle power.
Cardboards, for tests of vision;
positions of.
Care of dancer.
Castle, W. E., drawing of mouse;
cages.
Cat, albino;
training of.
Cerebellum of dancer.
Characters, acquired.
Check experiments.
China, dancers of.
Choice, exhibition of;
by affirmation;
by negation;
by comparison;
methods of.
Circling, a form of dance.
Circus course mice.
Cleghorn, A. G.
Climbing of dancer.
Cochlea, functions of.
Color blindness.
Color discrimination apparatus.
Colored glasses.
Colored papers.
Color patterns of dancers.
Color vision, problem;
methods of testing;
tests with colored papers,
tests with ray filters,
orange-blue tests,
yellow-red tests,
light blue-orange tests,
dark blue-red tests,
green-light blue tests,
violet-red tests,
green-blue tests,
green-red tests,
blue-green tests,
blue-red tests,
structure of the retina,
conclusions,
of different animals,
Comparative pedagogy,
Comparison, choice by,
Cones, lacking in eye of dancer,
Corti, organ of, in dancer,
Cotton mouse,
Curves, of habit formation,
irregularities of,
of labyrinth habit,
of discrimination habit,
of learning and re-learning,
of plasticity,
Cyclostat, behavior of dancer in,
Cyon, E. de, dancer pathological,
behavior,
behavior of blinded dancers,
varieties of dancer,
space perception,
individual differences,
anatomy of dancer,
hearing of dancer,
pain cries.
Dancers, occurrence among common mice,
varieties of,
hybrid,
Dancing,
forms of dance movement,
whirling, circling, figure-eights, manège movements, solo
dance, centre dance,
direction of,
periods of,
amount of,
causes of,
sex differences in,
individual differences in,
Darbishire, A. D., breeding experiments with dancers,
Deafness of dancer,
causes of,
Descent, lines of,
Development of young dancer,
Differences, individual,
sex,
Direction of movement, choice by,
Direction of whirling,
Discrimination, visual, box,
of brightness,
white-black and black-white,
of grays,
habits,
by odor,
by form,
method,
habit defined,
Diseases of dancer,
Dizziness,
visual,
rotational,
Docility,
Dog, albino,
training of,
fear of electric shock.
Ear, structure of, structural types, model of, of rabbit, functions of, movements of, Educability of dancer, Education, human, methods of, of vision, Efficiency of training, Electric-box for visual tests, Electric-labyrinth for habit experiments, Electric-shock as punishment for mistakes, Epidemic among dancers, Equilibration in dancer, Error curves, form of, Error records versus time records, Errors, in labyrinths, nature of, types of, value of, number of, Even numbers to designate males, Excitability of dancer, Experience, value of, influence of, Eyes, of dancer opening of retina of