INDEX. 



317 



Clathrulina, 114, 131 



elegans, 131 

 Closterium, 71, 74 



acerosum, 75 

 acuminatum, 76 

 Dianae, 76 

 Ehrenbergii, 75 

 ju'ncidum, 75 

 key to species, 74 

 lineatum, 74 

 lunula, 75 

 roBtratrum, 76 

 setaceum, 76 

 Venus, 76 

 Clover, crystal prisms in, 307 

 Coal, 293, 294 

 Cocconeis, 91, 94 



pediculus, 94 , 

 Cocconenema, 90, 93 



lanceolatum, 93 

 Coddington lens, 6 

 Collecting-bottle, 43 

 Collomia, seeds of, 304 

 Condensing lens, bull's-eye, 22 

 Conjugation of Spirogyra, 105 

 Conochilus, 221, 229 

 Copper solution for preservating 



Algse, 85 

 Cosmarium, 72, 81 



Brebissonii, 82 

 margaritiferum, 82 

 ■pyramidatum, 81 

 Ralfsii, 81 

 Cothurnia, 148, 155 

 Craig microscope, 4 

 Cricket, gizzard of, 299 

 Cristatella, 241, 244, 246 

 Crystals, plant, 306 



polariscope, 307 

 Cyclops, 265, 272 



Cyclosis in Anacharis, 57 

 in Closterium, 74 

 in Desmids, 65 

 in Vallisneria, 57 

 Cynthia Virginica, crystal prisms 



in, 306 

 Cyphoderia, 115, 130 



ampulla, 130 

 Cypris, 265, 268 



■ D 



Dandelion, 304 

 Daphnia, 264, 266 

 Das'ydytes, 176, 181, 182 

 Dendroca;Ium lacetum, 197 

 Dendromonas, 147, 149 

 Dero, 201, 205 

 Desmidium, 7r, 73 



Swartzii, 73 

 Desmids, 61, 69 



key to genera of, 70 , 

 to preserve, 85 

 vacuoles of, 65, 66 

 Deutzia scabra, 302 

 Diaphragm of microscope stand, 



21 

 Diaptdmus, 265, 271' 

 Diatoma, 90, 91 



vulgare, 9: 

 Diatoms, 61, 85 



fossil, 88 



key to genera of, 90 

 literature, 89, 96 

 movements, 63 

 structure, 62, 86 

 surface markings, 64, 



88 ■ •. 



to study, 89 

 Didymoprium, 71, 72 



Grevillii, 72 



