556 



INDEX. 



Viviparidse, 470f. 

 vulgaris, Arcella, 451f. 



W 



Wall-eyed Pike, 503*. 

 Walnut, Black, 301. 



Caterpillar, experiments with 



Disease of, 301, 312, 320. 

 Water Beetles, 442|, 467|. 



bugs, 484|. N 



mites, 438|, 467|. 



skippers, 484|. 

 Watson, Sereno, 2. 

 Wheat, rust of, 145. 

 Wheel-animalcules, 488f. 

 whipplei, Notropis, 500*. 

 White-fish, 434f, 436, 497. 



Fulton, 456*. 



Sucker, 442*, 444*. 

 Williston, S. W., 444. 

 Winged Ants, 437|. 

 Winter, G., Revision of Raben- 



horst's Pilze cited, 148. 

 Wolffia, 439|, 442t, 443f, 449|, 454|, 

 459|, 460f. 469f, 471|, 473t, 

 49 ij. 

 Wood Louse, Water, 487|. 



Woodworth, C. W., on Disease of 



Silkworm, 278. 

 Worm, nematoid, 461|. 

 planarian, 463|, 489|. 



Yeast remedy for European Cab- 

 bage Worm, 267. 



Yellow Catfish, 459|, 462*, 463*. 

 -necked Apple Caterpillar, 

 disease of, 258, 259, 295-300, 

 320. See Disease of Yel- 

 low-necked Apple Caterpil- 

 lar. 



Zebra Caterpillar, infection of, 305, 



320. 



summary of observations 

 and experiments, 311, 

 320. 



Zeiss, Carl, 273. 



Zygonectes notatus and Labides- 

 thes, food of, compared, 

 499. 

 Zygospora, 11. 



