508 



Index 



Vertebrates, nerve-muscle relation, 



115 



segmentation, 110 

 structure, 108, 110 

 see Amphibians, Amphioxus, 

 Balanoglossus, Cladoselache, 

 Cyclostomes, Evolution, Jap- 

 anese goldfish, Lungfish, 

 Tunicates 



Viceroy butterfly, 342; ill. 340 



Vireo, see Red-eyed 



Virus, filterable, 481 



Vitalism, 278 et seq., 479 



Vital principle, 188, 278, 283 



Vitamines, 293 



Volvocaceae, 95 



Volvox, structure, reproduction, 

 97-8 



Volcanic, see Dust 



Voles, see Mice 



Vulture, fossil, 135 



W 



Wapner, 252 



Walking st'ck insect, 337; ill. 336 



Wallace, 155, 235, 330, 340 



Warning, see Color 



Wasps, see Mimicry 



Wasp, solitary, see Ammophila 



Wassermann, see Syphilis 



Waste products, elimination, 322 



Water, tastes, odors, 378 



Water bottles, construction, ill. 

 368 



Water-cress, 382; influence of en- 

 vironment, 222 



Water supplies, examination, 377, 

 477 



Water-weed, 382 



Water-works, Boston, Brooklyn, 

 377 



Waters, inland, cyclic changes, 379 



et seq. 



food relation, plants and ani- 

 mals, 383 



Watson, 320 



Weasel, distribution, 174; ill. 173 



Web-footed chicken, 240 



Weevil, sugar cane, 407 



Weismann, 200, 202, 478; experi- 

 ments on mice, 244-5 



Werber, 194, 227 



Whales, and squids, 358 

 migration, 360 

 stomach contents, 377 

 use, 434-5 

 see Whalebone 



Whalebone, 372-3; ill. 373 



Wheel animalcule, see Rotifer 



Whipple, 378 



Whitefish, 426 



Whitman, 314 



Whitney, 232-3 



Whooping cough, see Immunity 



Wilder, 228 



Wild pigeon, extinct, 420 



William and Mary's College, 49 



Williams, 444 



Wilkes exploring expedition, 38, 39, 



54, 60. 349 

 Willey, 88 



Wilson, Alexander, account of pas- 

 senger pigeon, 23-4 

 acquaintance with Bartram and 



Lawson, 22 

 1 1 American Ornithology, ' ' 22, 



25 



birthplace, 22 

 death, 22-3 

 early life, 22 



emigration to America, 22 

 lines to the bluebird, 24 

 meeting with Audubon, 19 

 travels, 22 

 ill. 21 



see "Kentucky Warbler," 

 Wilson, E. B., 88 

 Wilson E. H., 68 

 Winnemucca, see Lake 

 Wings, see Birds 

 Winter eggs, 382; see Sex cycle 

 Wisconsin Natural History and 



Geological Survey, 377 

 Wistar, 33, 84 

 Wistar Institute, 74; established, 



84; work, 84-6 

 Wolf, see Giant 

 Wolff, 189 

 Wolverine, distribution, 174; ill., 



170 



Wolves and antelope, 421 

 deer, 161 

 -damage, 393 

 destruction, 400 

 marsupials, 186 

 transport, 155 

 ill. 401 



see Gray, Rabies 

 Woodchuck, distribution, 168, 174; 



ill. 172 

 see Plague 

 Woodland, caribou, distribution, 



174 



Woodruff, 200 



Woods Hole, see Marine Biological 

 Laboratory 



