FACTS AND FINDINGS 47 



single experimental criterion of evolution, and hence of 

 biological philosophy. Its findings have, therefore, forced 

 the withdrawal of science from the welter of speculation 

 into which it had fallen, by establishing experimental 

 tests for the various claims. And finally, 



4. That genetics permits a better valuation of many 

 problems of disease, of insanity, of feeble-mindedness, 

 and of various individual and social problems. 



^(1) Biography, History and Bibliography; (2) General Biology; (3) Evolu- 

 tion; (4) Cytology; (5) Genetics; (6) Biometry; (7) Ecology; (8) Animal Be- 

 havior; (9) Physiology, Biochemistry, and Biophysics; (10) Colloids, Surface 

 Tension, Permeability, etc.; (II) Enzymes and Catalysts; (12) Electrolytes and 

 Ions; (13) Light and Heat; (14) Electricity, X-Rays, and Radium; (15) Oxida- 

 tion and Reduction; (16) Methods and Apparatus; (17) Blood and Body Fluids; 

 (18) Nutrition, Metabolism, Growth, etc.; (19) Digestive System and Secretions; 

 (20) Respiration; (21) Endocrinology; (22) Kidney, Urine, etc.; (23) Repro- 

 duction and Lactation; (24) Environmental Responses; (25) Sense Organs; (26) 

 Nervous System; (27) Motor Apparatus; (28) Vascular System; (29) Pharma- 

 cology; (30) Pathology; (31) Immunology; (52) Filterable Viruses, Bacterio- 

 phage, etc.; 0^) Parasitology; (34) Bacteriology and other Microbiology; (35) 

 Economic Entomology; (36) Economic Ornithology; (37) Animal Production; 

 (38) Argonomy; (39) Horticulturer (40) Forestry; (41) Pharmacognosy 

 and Pharmaceutical Botany; (42) Systematic Botany; (43) Morphology and 

 Anatomy; (44) Paleobotany and Paleozoology ; (45) Vertebrate Anatomy, 

 Histology, and Physical Anthropology; (46) Embryology; (47) Systematic 

 Zoology. 



2Minot, C. S., Modern Problems of Biology, 1913. 



^Kellogg, Vernon L., "On International Biology," Bui. Pan-American Union, 

 December, 1925. 



^Science News, "The French Association for the Advancement of Science," 

 Science, August 13, 1926. 



''Ritter, Wm. E., "The Australian Meeting of the Pan-Pacific Science Congress," 

 Science, March 28, 1924. 



^Morgan, Thomas Hunt, "The Relation of Biology to Physics," Science, 

 March 4, 1927, p. 219. 



'Thomson, J. Arthur, "Biology," Encyclopedia Britannica, (13th Ed.) 



^Morgan, Thomas Hunt, op. cit., p. 216. 



^Thomson, J. Arthur, op. cit. 



^"President's Address, Report of the Ninety-Second Meeting of the British Asso- 

 ciation for the Advancement of Science, 1924. 



