INDEX 



473 



De Vries, mutation theory of, 408; 



portrait, 409; summary, 411 

 Dufour, Leon, on insect anatomy, 100 

 Dujardin, 250, 262; discovers sar- 



code, 250, 266; portrait, 265; 



writings, 264 



E 



Edwards, H. Milne-, 157; portrait, 



157 



Ehrenberg, 106, 107; portrait, 108 



Eimer, 413 



Embryological record, interpreta- 

 tion of, 229 



Embryology, Von Baer and the rise 

 of, 194-236; experimental, 232; 

 gill-clefts and other rudimentary 

 organs in embryos, 363; theoret- 

 ical, 235 



Epochs in biological history, 20 



Evolution, doctrine of, generalities 

 regarding, 347; controversies re- 

 garding the factors, 348, 375; fac- 

 tors of, 374; effect on embryology, 

 225; on palaeontology, 334; na- 

 ture of the question regarding, 

 350; a historical question, 350; 

 the historical method in, 350; 

 sweep of, 372; one of the greatest 

 acquisitions of human knowledge, 

 372; predictions verified, 373; 

 theories of, 375; Lamarck, 375; 

 Darwin, 392; Weismann, 398; 

 De Vries, 408; order of the best 

 reading, 465; summary of evo- 

 lution theories, 410; vagueness 

 regarding, 348 _ 



Evolutionary series, 353; shells, 353; 

 horses, 356 



Evolutionary thought, rise of, 415- 

 441 ; views of certain fathers of the 

 church, 416 



Experimental observation, intro- 

 duced by Harvey, 39-53 



Experimental work in biology, 447 



Fabrica, of Vesalius, 32 



Fabricius, Harvey's teacher, 41; 



portrait, 43 



Factors of evolution, 375 

 Fallopius, 37; portrait, 37 

 Flood, fossils ascribed to, 325 

 Fossil remains, the science of, 322- 



343; bones, 324, 327; horses in 



America, 357; collections in New 

 Haven, 357; in New York, 357; 

 man, 342, 366; Neanderthal skull, 

 368; ape-like man, 369; remains 

 of man: Neanderthal, 368; Java, 

 369; Heidelberg, 369; Piltdown, 

 370 



Fossil remains an index to past his- 

 tory, 331 



Fossils, arrangement in strata, 330; 

 ascribed to the flood, 325; their 

 comparison with living animals, 

 326; from the Fayum district, 343; 

 method of collecting, 342; nature 

 of, 324; determination of, by 

 Cuvier, 327; Da Vinci, 324; 

 Steno, 324; strange views re- 

 garding, 322 



Galen, 23, 180; portrait, 25 



Gal ton, law of ancestral inheritance, 

 321; portrait, 320 



Geet, De, on insects, 95 



Gegenbaur, 163; portrait, 164 



Generation, Wolff's theory of, 210 



Germ-cells, organization of, 210 



Germ-layers, 218 



Germ-plasm, continuity of, 399; 

 complexity of, 401; the hereditary 

 substance, 321; union of germ- 

 plasms the source of variations, 402 



Germ-theory of disease, 293 



Germinal continuity, 224, 309; doc- 

 trine of, 224, 312, 399 



Germinal elements, 306 



Germinal selection, 403 



Germinal substance, 311 



Gesner, 112; personality, 113; por- 

 trait, 114; natural history of, 113 



Gill-clefts in embryos, 363 



Goodsir, 174 



Grew, work of, 56 



H 



Haeckel, 439; portrait, 440 

 Haller, fiber-theory, 242; opposition 

 to Wolff, 211 ; in physiology, 181; 

 portrait, 182 



Harvey, and experimental observa- 

 tion, 39-53; his argument for the 

 circulation, 51; discovery of the 

 circulation, 47; his great classic, 

 46; education, 40; in embryology, 

 198; embryological treatise, 199, 



