INDEX 



425 



Vernonia, 272 



fasciculata, 273 

 Viola, 288 



pedata, 272 



pedatifida, 272 

 Virco, 134 



yellow-throated, 135 

 Viscacha, 80, 253 

 Visibility, 253 

 Vitamins, 190, 211 

 Viviparous animals, 46 

 Viviparous perch, 316 

 Vole, 195 



Louisiana, 280 

 Vorticella, 140 

 Vulpes, macrotis neomexicana, 285 



velox, 259 



velox velox, 265 

 Vultures, 133 



Wallowing, 79 

 Warbler, black-poll, 220 

 black-throated blue, 220 

 hooded, 110 

 myrtle, 135 

 palm, 220 

 wood, 134 

 Warnings, 153 

 Wasps, 267 ^ 

 Water, 62 

 lilies, 107 

 reaction, 94-102 

 decreasing content, 88 

 increasing content, 87 

 Weasel, 132, 133, 253, 265 

 Weathering. 75, 76 

 Weevils, .126 

 Whales, 319, 320 

 baleen, 107 

 blackfin, 316 

 gray, 316 

 hump-back, 319 

 killer, 316 

 right, 320 

 sperm, 319 

 Wheat rust, 108 

 Whelks, 330 

 White fish, 306 

 Whiting, 343 



W^ildcat, 108 

 Wilsonia citrina, 110 

 Wind, 92 



Wingless cockroaches, 285 

 Winter bodies, 34 



Wolf, 33. 108. 112, 114, 132, 166, 193, 

 252, 285, 298, 293 



bufTalo, 257, 264, 265, 273, 274, 280 



gray, 133 



pack, 107, 115 



Texas, 280 

 Wolverine, 133, 193 

 Woodchucks, 133 

 Woodcocks, 197 

 Woodland caribous, 62, 123 

 Woodpeckers. 126. 135 



California. 129 



Lewis, 129 



Mexican, 126 

 Wood pewee, 135 

 Wood rat, 73 

 Worm, 230, 300, 306, 334, 339 



serpulid, 54 

 Wren, 134 



house, 135 

 Wyethia, 292 



Xerosere, 249 

 Xiphister mucosus, 326 



Yellow adder's tongue, 220 

 Yellow-bellied sapsucker, 220 

 Yellow-green algae, 75 

 Yoldia, 332 



hyperborea. 334 



limatula. 339 



scissurata, 331 

 Yucca, 283, 288 



brevifolia, 288 



Zoobiocenose, 7 

 Zoocenose, 6 

 Zoochlorella, 140 

 Zooids, 52 

 Zoophytes, 34, 52 

 Zootope, 7 

 Zooxanthclla, 140 

 Zostera, 25, 336, 350 



-Rissoa-Cardium faciation, 336 

 Zygadenus, 287 



