6io 



INDEX 



Roosevelt, Mrs. T., Sr., et al., Cleared for Strange 



Ports, 584 

 Root hairs, abnormal forms, 371 



function of, 347 



and growth, 343 



rate of elongation, 361 



reaction to external conditions, 359 



structure of, 351 

 Rose, M. S., Nutrition, 144 

 Roule, L., Lamarck, 571 

 Rout, E. A., Maori Symbolism, 136 

 Ruckmick, C. A., Mental Life, 594 

 Russell, B., Philosophy, 301 

 Ryan, J. A., Human Sterilization, z86 



Sack, A., Hippocrates, Z84 



Sajous, C. E. deM., Strength of Religion as Shown by 

 Science, 571 



Samec, M., Colloid Chemistry of Starches, 591 



Sanger, M., Proceedings of World Population Con- 

 ference, 576 



Sarton, G., History of Science, 149 



Sayle, Mary Honora, Metabolism of Insects, 54Z- 



553 

 Schertz, F. M., Chloroplast Pigments, 459-485 

 Scheidt, W.j Anthropometry, 441 

 Schmitt, E., Chinese Marriage, 2.90 

 Schmitz, E., Physiological Chemistry, 301 

 Schrader, F., Sex Chromosomes, 575 

 Science as form of play, 333 

 Seasonal changes in testes, 154 

 Seedling growth and longevity, 401 

 Sehrt, E., Lipoids of the White Blood Cells, 591 

 Seifried, O., Pathology of the Rabbit, 575 

 Selection, mathematical theory of, 145 

 Selous, E., Bird Life, Z9Z 

 Sensory capacities of dogs, 1 

 Septa of cephalopods, 106 

 Sex (book reviews), 146, 30Z, 453, 592. 

 Sex control by queenbee, 379 

 Sexual differentiation, 308 

 Shand, P. M., Book of Food, 456 

 Shipley, M., War on Modern Science, 1Z9 

 Shumway, W., Embryology, 14Z 

 Sidebotham, H. M., London Zoo, 445 

 Sincl, J., Sixth Sense, 303 

 Slouschz, N., Travels in North Africa, 578 

 Small, W. S., as comparative psychologist, 503 

 Smiley, D. F., and Gould, A. G., Hygiene, 590 

 Smith, E. E., Aluminum Compounds in Food, 589 

 Social parasitism in birds, 554 

 Sorokin, P., Contemporary Sociological Theories, 



581 

 Spearman, C, Abilities of Man, 117 

 Speech, lack of among apes, 319 



Spencer, B., and Gillen, F. J., The Arunta, 577 



Sprowls, J. W., Social Psychology, 147 



Squalodonts, 50 



Steel, M., Physical Chemistry and Biophysics, 451 



Stewart, F. H., Segregation and Autogamy in Bac- 

 teria, 119 



Still, G. F., Child Life Investigations, 135 



Stopes, M. C, Contraception, 454 



Sub-human culture beginnings, 32.5 



Sullivan, J. W. N., Gallio or the Tyranny of Science, 

 598 



Swift, M. I., The Evil Religion Does, 598 



Swingle, D. B., Systematic Botany, 588 



Symmetry of organisms, 530 



Tait, John, Homology, Analogy and Plasis, 1 51-173 

 Tarantula, life cycle and mating habits, 109 

 Taylor, G., Environment and Race, 185 

 Taylor, W. P., and Shaw, W. T., Mammals and Birds 



of Mount Ranier National Park, 446 

 Taylor, W. R., Marine Algae of Florida, 447 

 Telescoping of cetacean skulls, 4Z 

 Tcncbrio molt tor, 544 

 Testes, seasonal changes, Z54 

 Theobald, F. V., Plant Lice of Great Britain, 445 

 Thermodynamics and living matter, 81 

 Thomson, J. A., Minds of Animals, 595 

 Thorndike, E. L., as comparative psychologist, 504 

 Tillotson's Directory of Stock Breeders, 130 

 Tools, use of by apes, 331 

 Tropism theory, 498, 508 

 Trypanosomes, Z36 

 Twins, identical and fraternal, 408 



United States Census of Agriculture, 19Z5, 58Z 

 Unna, P. G., Histochemistry of the Skin, 591 



Valley, George, Effect of C0 2 on Bacteria, Z09- 



zz 4 

 Variation, 5Z6 

 Variegation, 319 



Vattcr, E., Races and Peoples of the Earth, 580 

 Veiby,J.,Jingo, 305 

 Vejdovsky, F., Structure and Development of the 



"Living Matter," 573 

 Verworn, M., as comparative psychologist, 498 

 Vitamines, 475 



Voronoff, S., Conquest of Life, 43Z 

 Vouillcmin, Scientific Knowledge, 306 



Wadsworth, A. B., Public Health Laboratory Tech- 

 nique, 149 

 Walter, H. E., Biology of Vertebrates, 434 

 Warburg, O., Catalytic Action of Living Substance, 

 45i \ 



