Shamrock (water), 101. 
Shephard, 181. 
Shore bugs (see Saldide). 
Slater, 144. 
Smartweed. 93. 
Smith Pond, 17, 20. 
Smoky Hill river, 19. 
Snails, 149, 208, 248. 
Soars, 31. 
Sphagnum, 33, 93. 
Spike rush, 33, 34, 93. 
Spirogyra, 35, 37, 93, 228, 240, 243. 
Springtail, 101, 102. 
Striders (see Gerride). 
Swammerdam, 13, 36, 91, 151, 157, 158, 
161, 190. 
rs 
Tenagobia, 211, 212. 
Tenagogonus, 107, 112. 
Tenagogonus franciscanus, 113. 
Tenagogonus hesione, 118. 
Tenagogonus hyalinus, 112, 118. 
- Tettix, 50. 
Tetraspora, 242, 244, 246. 
Thomas, 36, 235. 
_ Tigny, 14. 
 Tillyard, 230. 
-‘Tingididy, 34. 
INDEX. 341 
Todd, 145. 
Trepobates, 29, 42, 107, 114. 
Trepobates pictus, 115, 119. 
U. 
Uhler, 15, 50, 51, 53, 54, 79, 80, 144, 208. 
Vv. 
Van Duzee, E. P., 9, 11, 1538. 
Velia, 30, 42, 122, 131, 139. 
Veliidxw, 8, 11, 12, 29, 30, 40, 121. 
Veliidw, Biology of, 134. 
Veliidw, Key to genera, 122. 
Velia annulipes, 131, 135. 
Velia australis, 131, 132. 
Velia brachialis, 131, 133. 
Velia, Key to species, 131. 
Velia stagnalis, 131, 132. 
Velia watsoni, 134. 
Vorticella, 146. 
W. 
Walchener, 14. 
Ward and Whipple, 32. 
Water mites, 31, 182, 222. 
Water scorpion, 13. 
Weed, 148, 149, 150. 
Wefelshied, 16, 179. 
Welch, 144. 
Wesenberg-Lund, ——. 
