IXDEX. 



301 



Cotkurnia, 139, 146. 

 Craig microscope, 5. 

 Cricket, gizzard of, 281. 

 Cristalella, 225, 229, 231. 

 Crystals, plant, 289. 



polariscope, 290. 

 Cyclops, 241, 246,254. 

 Cyclosis in Auacharis, 59. 



in Closterium, 77. 



in desmids, 68. 



in Vallisneria, 60. 



Cynthia Virginica, crystal prisms in, 



290. 

 Cyphoderia, 116, 129. 



ampulla, 129. 

 Cypris, 246, 250. 



D. 



Dandelion, 287. 



Daphnia, 245, 247. 



Davies, Thomas, on preparation and 



mounting of microscopic objects, 



46. 



Dendroccelum lacieum, 183. 

 Dcndromonas, 188, 140. 

 Dero, 164, 188, 192. 

 Desmidinm, 74, 77. 



Swartzii, 77. 

 Desmids, 61, 64,72. 



key to genera of, 66. 



to preserve, 88. 



vacuoles of, 68. 

 Deutzia scabra, 285. 

 Diaphragm of microscope stand, 22. 

 Diaptonuts, 245, 246, 252. 

 Diatoma, 93, 94. 



mdgare, 94. 

 Diatoms, 61, 64, 72, 89, 92. 



as food for microscopic animals, 

 92. 



Diatoms, fossil, 91. 



key to genera of, 93. 



literature, 92. 



movements, 66. 



structure, 90. 



surface markings, 67, 89. 



to study, 92. 

 Didymoprium, 74, 76. 



' GremUii, 76. 

 Difflugia, 112, 116, 123. 



acuminata, 125. 



Difflugia corona, 125. 



globulosa, 125. 



pyriformix, 125. 

 Dinobri/on, 138,144. 

 Dinocharis, 208, 218. 

 Diplodontus, 267, 269, 273. 

 Dipper, tin, a useful collecting tool, 



48. 

 Dipping-tube, 34. 



to make, 36. 



to use, 35. 

 Docidium, 75, 84. 



Baculum, 84. 



crenulatum, 84. 

 Draparnaldia, 104, 108. 



glomerata, 108. 

 Drawing the object, 41. 



camera lucida for, 42. 



reflector for, 42. 

 Draw-tube, microscope, 11. 

 Dry object?, to examine, 26. 



to mount, 33. 



Duckmeat (Lemna), 48, 57. 



Eggs of Chironomm, 167. 



of Eidomostraca, 240. 



of insects, 281. 



of Rotifers, 205. 



of snails, 167. 



of mapping-turtle, 205. 



of Tubifex, 198. 



of Turbdlaria, 181. 



of water-mites, 167. 

 Elytra, 279. 



Ernertoii's " Life on the Sea-shore," 

 x. 



"Structure and Habits of Spi- 

 ders," x. 



Enchytrans, 188, 189. 



social^, 190. 



vermindaris, 190. 

 Encyonema, 93, 96. 



paradoxa, 96. 

 Entomostraca and Phyllopoda, 238. 



key to genera of, 245. 



antennae, 239. 



beak, 239. 



effect of heat on, 243. 



eggs of, 240. 



eyes of, 240. 



