Index 



577 



Colton, H. S., 521, 533 

 Columbine borers, 361 

 Compound ascidians, 565 

 Concentration of organisms, 36, 42, 126, 



549 

 Coniopterygidae, 332 

 Conjugation, 102, 132 

 Conklin, E. G., 531 

 Constant level, 22 

 Containers, 221 

 Contamination, 380 

 Controlled spawning, 393 

 Cook, S. F., 276 

 Cool cabinet, 422 

 Copepoda, 150, 221, 272 

 Copper, sensitivity to, 16 

 Coral, 145 

 Coreidae, 300 

 Coria, R., 114 

 Corimelaenidae, 299 

 Corizus, 300 

 Cork ring, 377 

 Corn, 497 



Corn borer, 280, 439, 49 1 . 49 2 

 Corn ear-worm, 497 

 Corn leaf aphis, 323, 397 

 Cornmeal, 196, 197, 280, 439 

 Corn-root aphis, 323 

 Corn-root worm, 477 

 Cornstalks, 477, 483, 492 

 Corn syrup, 439 

 Corrodentia, 279 

 Corydalis, 334 

 Cotinus, 471 



Cotton, Richard T., 467 

 Cotton seed meal, 212 218 

 Cotton squares, 481 

 Crab, 238, 407 

 Crabronidae, 486 

 Cragg, F. W., 435 

 Crago, 232 

 Craig, C. F., 87, 88 

 Craneflies, 368, 371 

 Crangonidae, 233 

 Crataegus, 360, 475 

 Crayfish, 49, 236 

 Crematogaster, 455 

 Crepidobothrium, 157 

 Crepidula, 531, 536 

 Crickets, 242, 285, 286 

 Criddle, Norman, 286 

 Cristatella, 179, 181 

 Cross fertilizing, 538, 568 

 Crustacea, 162, 205, 261, 271 

 Cryptocotyle, 157 

 Cryptomonadida, 59 

 Ctenolepisma, 261 

 Cucumaria, 559 

 Cucumber, 299 



Culex, 97, 383, 386 

 Culicidae, 376 

 Culicoides, 391 

 Cultivation of diatoms, 39 

 Cumingia, 543 

 Curculionidae, 480 

 Curicta, 310, 313, 314 

 Current rotor, 24 

 Curtisia, 155, 156 

 Cutright, Clifford R., 461 

 Cyclopidae, 226 

 Cyclops, 226, 227, 525 

 Cydnidae, 299 

 Cyllene, 475 

 Cynipidae, 498 

 Cynomyia, 415 

 Cypridae, 229 

 Cyprididae, 272 

 Cypridopsis, 229 

 Cyrtogaster, 497 

 Cysticercus, 160 

 Cysts, 90, 100, 102, 133, 160 



Dactylotum, 289 



Damselfly, 268 



Danielson, R. N., 196 



Daphnia, 141, 207, 213, 215, 216, 219, 



270 

 Daphniidae, 207 

 Darby, Hugh H., 233, 439 

 Dark heat, 512 

 Darling, S. T., 167 

 Dasyhelea, 391 

 Datana, 285 

 Davidson, W. M., 461 

 Davis, Donald W., 144 

 Davis, J. J., 468 

 Davis, W. H., 134 

 Dawson, R. W., 357 

 Dead leaves, 523, 526 

 De-aeration, 20 

 Decapoda, 231 

 DeCoursey, R. M., 427 

 Deep cultures, 66 

 Defoliators, 486 



DeKhotinsky thermo-regulator, 351 

 Delage, I., 550 

 Delcourt, A., 440 

 Dendrochirota, 559 

 Dermacentor, 246 

 Dermaptera, 282 

 Dermestes, 458 

 Dermestidae, 243, 458 

 Dero, 150 



Deschiens, R., 87, 88 

 Desiccation, 254 

 Desmids, 267 

 Desor larva, 164 

 Dextrose agar, 53, 117 



