227-239 Tooley Street, London, S.E. References in the Index refer to the Alphabetical Enumeration in the margin of each page of the Catalogue. * * * * * The Exhibition Committee desire to take this opportunity of expressing their thanks to the Exhibitors for the loan of their exhibits. They desire specially to acknowledge the courtesy of Professor von Gruber for giving permission to make use of Translations from the Catalogue of the International Congress of Race Hygiene held in Dresden last year. INDEX TO EXHIBITS. A Ability, Administrative, Pedigree shewing Descent of, I. 1 Inheritance of, as exemplified in the Darwin, Galton, and Wedgwood families, O. 5 Abnormal Germ Production, _see under_ Germ Production Abnormalities observed in Drunkard's Children, C. 92 Abortions and Premature Births in various Callings, C. 101 Administrative Ability, Pedigree shewing Descent of, I. 1 Age-intervals, separating various Generations of Mannheim families, C. 39 Age of Parents Conjointly with Numerical position in Family, in relation to Infantile Mortality, C. 51 at Death, and Marital gross and net Fertility, C. 7 and Mortality of Children up to 5 years, C. 9-10 and Mortality of Children up to 20 years, C. 7-8 AGRICULTURAL COLLEGE OF UTAH JOHN A. WIDTSOE, A.M., Ph.D., Chart shewing Inheritance of Physical and Mental Qualities and Defects, and of Literary Ability, from a Polygamous Family in Utah, N. 1 Alcohol and Degeneration, C. 91-3 Effect of, on Human Offspring, C. 96 Experiments with, on Animals, in Small Quantities, C. 95 Frequency and Intensity of harmful Influences through, relative, Urban and Rural, C. 88 Injury from, to Reproductive functions, C. 89-90 Alcoholic, Epileptic, Sexually-immoral Man, and Neurotic and Sexually-immoral Woman, Offspring of, D. 9 Intoxication, Acute, effect of on Origin of Feeble-mindedness, C. 97 Man, and Feeble-minded Woman, Offspring of, D. 10 and Migrainous Woman, Offspring of, D. 13 Alcoholism, Paternal, effect of, on Suckling-capacity of Daughters, C. 93 Inter-connection with, of Tuberculosis, Nervous Diseases, and Psychoses of Offspring, C. 94 _Alytes obstetricans_, _see_ Midwife Toad "All London," Booth's Classification of, Comparison of, with the Normal Classes, O. 3 AMERICAN BREEDERS' ASSOCIATION, EUGENICS SECTION (C. DAVENPORT, ESQ.). Charts _re_ Defectives, Classification and Statistics of, P. Ancestors, Theoretical Number of, C. 115 Ancestral Loss, Phenomenon of, C. 96 Animals, Experiments on, with Small quantities of Alcohol, C. 95 Arab v. Spaniard, Segregation Inheritance of Eye-colour, K. 4 Archduchess Maria ... of Tuscany, Pedigree of, C. 112 Association of Characters in Heredity in Sweet Peas, M. 6 & 7 (_a & b_) Atrophy, Progressive Muscular, C. 13