578 



Index 



Dextrose solution, 172, 380 



Diabrotica, 477 



Diaeretus, 496 



Diamalt, 430 



Diaptomidae, 143 



Diatoms, 32, ^, 39, 95, 183, 199, 223, 



267, 275, 544, 558 

 Diatoms, concentration of, 36 

 Dibrachys, 348 

 Dicranota, 375 

 Didinium, 63, 100, 101 

 Didlakc, Mary L., 244, 284 

 Dientamoeba, 87 

 Difflugia, 92 

 Difflugiidae, 92 

 Digger, 7 



Dikerogammarus, 230 

 Dina, 203 

 Dineutcs, 450 

 Diplopoda, 258 

 Dip net, 5, 41 

 Diprionidae, 486 

 Diptera, 266, 368, 454 

 Dipterous larvae, 412 

 Discorbis, 93 

 Diseases, 291 



Disinfection, 166, 423, 424 

 Dissociated cells, 137 

 Diving helmet, 13 

 Dobell, C, 87 

 Dobrovolny, C. G., 173 

 Dock, 492 



Doering, Kathleen C, 315 

 Dog biscuits, 243, 480 

 Dolley, William L., Jr., 410 

 Doves, 98 

 Drbohlav, J., 87 

 Dredge, 9 

 Drilling, 537 

 Drill-trap dredge, 534 

 Drone fly, 410 

 Drop-culture slides, 280 

 Drosophila, 245, 294, 309, 351, 437 

 Drosophilidae, 437 

 Dry buttermilk, 218 

 Dryinidae, 514 

 Dry-wood termites, 278 

 Duck-weed weevil, 480 

 Dunaliella, 134, 225 

 Dusham, E. H., 475 

 Dutch elm disease, 484 

 Dyscinetus, 469 

 Dytiscidae, 450, 451 

 Dytiscus, 242 



Earthworms, 49, 195, 427 

 Earwigs, 282 

 Ear-worm, 497 

 Echinarachnius, 558 



Echinodermata, 29, 547 



Echinoidea, 554 



Echinus, 238 



Eclosion, 380 



Ectoparasitic, 158 



Ectoprocta, 178 



Eddy, C. O., 296 



Edwards, F. W., 402 



Egg, as food, 63, 433 



Egg boxes, 490 



Egg case, 535 



Egg masses, 394 



Egg membranes, 568 



Egg parasites, 397, 491, 500 



Egg-set, 556 



Egg solution, 124 



Eggs, obtaining, 182, 543, 555, 566 



Eggs, refrigeration of, 348 



Eisenia, 196, 427 



Elateridae, 455 



Electric flashlight, 337 



Eleocharis, 268 



Elliott, A. M., 104 



Elodea, 270, 448 



Elphidium, 94 



Embadomonas, 67, 88 



Embiidina, 281 



Embody, G. C., 209, 216 



Enchytraeidae, 191, 193 



Enchytraeus, 191, 193, 196 



Encoptolophus, 289 



Encystment, 71, 102, no, 132, 133 



Endamoeba, 69, 87, 88, 128 



Endolimax, 91 



Engorging, 203, 249, 297, 307, 382, 388 



Enteromonas, 88 



Entomostraca, 142, 143, 205 



Entosiphon, 62, 177 



Ephedrus, 496 



Ephemeroptera, 266 



Ephestia, 355, 489 



Ephippial eggs, 215, 220 



Epibdella, 158, 159 



Epilachna, 461 



Erioptera, 373 



Eristalis, 410 



Erotylidae, 460 



Erpobdellidae, 203 



Eschscholtzia, 410 



Esperella, 137 



Ether, 364 



Etherization, 351, 364, 388, 434, 442 



Eucalia, 74 



Euchloe, 368 



Eucleidae, 365 



Euctheola, 469, 471 



Euglena, 53, 63, 71, 81 



Euglenamorpha, 69 



Euglenidae, 61 



