INDEX 465 
Sparrow—Continued. 
Vesper, 196, 197, 198, 206, 214, 217, 
419, 421, 422, 427, 428, 432, 443. 
White-crowned, 427, 443. 
White-throated, 401, 427, 428, 429. 
431, 443. 
Spartina, 165. 
Sphaeriidae, 36, 37, 38, 39, 46, 47, 48, 
49, 50, 53, 54, 55, 58, 60, 62, 63, 69, 
ioe 
Sphaerium simile, 50. 
stamineum, 37, 50, 55. 
striatinum, 37, 50. 
Sphyrapicus varius varius, 440. 
Spinus pinus, 442. 
Spiza americana, 444. 
Spizella monticola monticola, 443. 
passerina passerina, 443. 
pusilla pusilla, 210, 443. 
Sponges, fresh-water, 9-22, 36, 45, 52, 
bv. 
Spongilla aspinosa, 17. 
fragilis, 13, 14, 15, 16, 17. 
calumetica, 13. 
heterosclerifera, 17. 
igloviformis, 14, 16, 17. 
lacustris, 13, 14, 15, 16, 17. 
mackayi, 17. 
novae terrae, 17. 
wagneri, 17. 
Sporobolus, 121. 
Spruces, 336. 
Stelgidopteryx serripennis, 444. 
Stenelmis, 52, 57. 
Sterigmatocystis, 137. 
Strix varia varia, 440. 
Sturnella magna magna, 442. 
Stysanus, 165. 
Sudan grass, 138, 170. 
Sugar-cane, 138. 
Sumach, 343., 
Sunfish, 387. 
Swallow, Bank, 444. 
Barn, 193, 196, 197, 198, 201, 202, 
214, 217, 433, 444. 
Cliff, 203, 214, 217, 444. 
Rough-winged, 444. 
Tree, 444. 
Swift, Chimney, 211, 214, 217, 441. 
Sycamore, 297, 302, 311, 316, 331, 332, 
3338, 336, 337, 351. 
Synchitrium, 165. 
ay 
Take-all, 77. 
Tanager, Scarlet, 444. 
Summer, 444. 
Tanypus dyari, 40, 42, 72. 
illinoensis, 51. 
monilis, 51, 56, 65, 72. 
Taphrina, 165. 
Taxodium distichum, 306. 
Teal, Blue-winged, 438. 
Telmatodytes palustris palustris, 447. 
Tern, Black, 438. 
Thrasher, Brown, 4, 5, 6, 7, 190, 193, 
194, 195, 197, 198, 201, 206, 208, 
209, 210, 211, 218, 214, 217, 4383, 
446, 
Thrush, Gray-cheeked, 448. 
Hermit, 448. 
Olive-backed, 448. 
Wood, 208, 447. 
Thryomanes bewicki bewicki, 447. 
Thryothorus ludovicianus ludovicianus, 
447. 
Tilia, 309. 
americana, 309. 
Titmouse, Tufted, 208, 211, 214, 217, 
400, 411, 412, 413, 414, 422, 428, 
433, 447. 
Toad eggs and embryos, 379, 381, 385. 
Tomatoes, 291. : 
Totanus flavipes, 439. 
melanoleucus, 439. 
Towhee, 208, 210, 211, 214, 215, 217, 
422, 427, 444. 
Toxostoma rufum, 446. 
Trichoptera, 71. 
Trochospongilla horrida, 14, 17. 
leidyi, 14, 15, 17. 
Troglodytes aedon parkmani, 447. 
Tryngites subruficollis, 439. 
Tubella pennsylvanica, 14, 15, 16, 17. 
Tubifex, 44, 52, 57, 66. 
