464 



Index 



Tubifex — Con Untied. 



tubifex, 333, 344, 345, 346, 361, 372, 

 394, 399, 407, 408. 

 or var., 414. 

 Tubificidae, 329, 333, 337, 341, 344, 345, 

 346, 347, 349, 352, 353, 361. 372, 

 378, 391, 392, 393, 394, 395, 396, 

 397, 398, 399, 400, 401, 403, 405, 

 406, 407, 408, 414, 440, 441, 443, 

 444, 458. 

 Tulip, 112, 119. 



-poplar, 72, 117. 

 Turbellaria, 417. 

 Turtle. Painted, 430. 



Ridge-bacli, 430. 

 Turtles, 430, 444, 453. 



destructive to young fish, 548. 

 snapping, 430. 

 soft-shelled, 430. 



U 

 XJlmus alata, 15. 



americana, 15. 

 Uncinula necator, 230, 258. 

 Unio crassidens, 385. 



gibbosus, 385. 



(lacustrine), 544. 

 Unionidae, 416, 419, 429. See also 



Mussels. 

 Urnatella gracilis, 380, 417, 418. 

 Urocystis cepulae, 253. 



occulta, 200. 



tritici, 186. 

 Uromyces appendiculatus, 253. 



caryophyllinus, 258. 



fallens, 205. 



striatus, 203. 

 Ustilago avenae, 192-193. 



hordei, 202. 



nuda, 201. 



striaeformis, 205. 



tritici, 184. 



zeae, 195. 

 Utrieularia, 548. See Bladderworts. 



Vallisneria, 354, 366. 



Valsa ambiens, 213. 



leucostonia, 218, 223. 

 Valvata bicarinata, 380, 381, 402, 416, 

 420. 

 bicarinata normalis, 402, 416. 

 carinata, 546. 

 (lacustrine), 544. 

 sincera, 546. 



tricarinata, 353, 380, 381, 383, 402, 

 416, 420, 546. 

 Velia currens, 441. 

 Veliidae, 443, 449, 450, 451, 452, 455, 



457. 

 Venturia inaequalis, 206. 



pyrina, 216. 

 Virginia Creeper, diseases of, 258, 278, 



325. 

 Vivipara contectoides, 351, 364, 380, 

 402, 404, 418, 419, 421. 

 subpurpurea, 351, 364, 380, 404, 418, 

 419, 421. 

 Viviparid'ae, 334, 337, 363, 374, 392, 412, 

 416, 418, 419. 421. 



w 



Walnut, 61, 72, 84, 86, 87, 91, 143, 144. 



Black, 74, 112, 113, 117, 131, 154. 

 Warty-back, 384. 

 Water-beetles, predaceous, 458. 

 Water-bugs, 456. 



as food of Black Bass, 547. 



destructive to young fish, 548. 

 Water-fowl and weeds (lacustrine), 



542. 

 Water-net, 447. 

 Water-penny, 458. 

 Water-snakes destructive to young 



fish. 548. 

 Water-striders, 456, 457. 

 Water-willow. 445, 447, 449. 

 Watermelon, 245. 



diseases, 245-247, 278, 319. 



Excel, 246. 



Irish Gray, 246. 



Tom Watson, 246. 

 WTieat, 175. 



Black Hull, 189, 266, 270. 





