INDEX OF SUBJECTS 



407 



derthal type, 334; generalized, 

 54, 55, 81, 84; are abstractions, 

 54, 55; generic, 116, 117; persis- 

 tence of, 118, 123; Grimaldi, 332; 

 intergradent, 83; invertebrate, 

 117; modern, 116, 120, 334; 

 Neanderthaloid, 329, 335; per- 

 sistent, 116; persistence of, 119; 

 phyletic, 116, 117; permanence 

 of, 118; specific, 116, 141 — per- 

 sistence of, 118, 123; fossil doc- 

 trine of their invariable se- 

 quence, 104, 312 



Ultramicron, 144, 168; destitute 

 of reproductive power, 168; may 

 not be natural unit, 168; of col- 

 loidal solutions, 168 



Ultramicroscope, 140, 144; limit 

 of, 140 



Ultraspiritualism of Descartes, 199, 

 202 



Ultra-violet rays, 148, 184 



Unchange, not explained by theory 

 of exchange, 123 



Understanding, 235 



Ungulates, 78, 82; fossil, 82 



Uniformitarianism, 67, 68 



Uniformity of nature, 149, 186; 

 only justification for reconstruc- 

 tion of the past, 149; principle 

 of, 169 



Union of soul and body, according 

 to Descartes, 198, 199 



Units, 144, 162, 163, 166, 167, 168, 

 170, 174-177, 199-201; difference 

 between, 170; inorganic, 144, 163, 

 166, 170, 174, 175, 176, 177, 201— 

 and living, 170, 175-177— incap- 

 able of other than transitive 

 action, 174, 177; living and non- 

 hving, 199, 200; natural, 168; 

 new, of life to be discovered, 

 167; of nature, non-living, 162, 

 163 



Universe, Stone Book of, 127 



Uranium, 146 



Urea, 173 



Ureter, 282 



Uroleptus mobilis, 138, 161 



Urosthenic, 270 



Ursus spelseus, 326, 329 



Use, 291 

 Utility, 291 



Valence, 165; atomic, 165; molec- 

 ular (residual), 165 



Variation, 9, 18, 40, 41, 42, 45, 63, 

 64, 88, 303; agencies of, 42; 

 cause of modification, 41 ; con- 

 verges and diverges, 63, 64; 

 fluctuational, 9, 303; heritable, 

 42; intra-specific, 43; muta- 

 tional, a change of loss, 18; non- 

 inheritable, 42; process of diver- 

 sifying, 40, 45; trans-specific, 43, 

 88--no experimental evidence 

 of, 45 



Varieties, 334, 342 



Vault, 329, 332 



Vegetarians, 236 



Versatility, 257, 258, 259; distinct- 

 ive mark of intelligence, 257, 

 258 



Vertebrae, 279 



Vertebrate, 60 



Vertebrata, 119, 270, 271, 279-284, 

 292, 297, 300, 302; amniotic, 280- 

 282; anamniotic, 280, 282 



Vestigial remnants, 299 



Viability, 4, 5, 25, 26, 43, 44 



Vibration, 209; pure, 209; without 

 vibrant medium, 209 



Vinegar fly, 19, 85 



Violet, 25, 159 



Visceral arches and clefts, 278, 279 



Visualist, 219 



Vital activity, 201 



Vital continuity, 134, 139, 155; 

 genetic, first article of, 134; law 

 of, 134, 155, law of, 139; its 

 fourth article, 139 



Vital force, no special, 201 



Vitality, 150; eludes art of chem- 

 ist, 150 



Vital principle, 172, 200, 203; as 

 defined by Neo-Vitalists, 172; 

 entitive, not dynamic, 172; term 

 alleged to be meaningless, 200; 

 term in disfavor, 200 



Vivisection, 360 



Volcanic bombs, 346-348 



Volition, 221, 231, 233; not func- 

 tion of the material organism, 

 233 ; presupposes conception, 



