INDEX TO VOLUMES IV, V AND VI. 



4 



Acquired Characters, 26 

 Actinolophus, 262 



minutus, 263 

 Aelosoma, 435 

 Aesculus glabra, 20 

 Agar-agar Method, 344 

 Alcohol, Mixing, 552. 

 Alders, Key to, 517 

 Algae, Brush Lake, 268 



Lake Erie, 148 

 Angiospermae, 390 

 Anthurus borealis, 474, 517 

 Apion nigrum, life history, 346 

 Aradidae of Ohio, 36 

 Aradus, 22, 36 



aequalis, 36 



crenatus, 37 



duryi, 39 



duzei, 38 



elongatus, 41 



lobatus,40 



ornatus, 22, 38 



o vat us, 41, 



robustus, 37 



simplex, 40 

 Ascaris, Reducing Division in, 519 

 Ascochyta pisi, 507 

 Ashes, Key to, 270 

 Aspidiotus ohicensis, 325 



piceus, 96 

 Atemnus elongatus, 489 

 Batrachum longisrotris, 353 

 Biological Club, 98, 114, 193, 216, 



250, 272, 294, 308, 329, 352, 



377, 400, 422, 451, 474, 496, 



518, 556 

 Birds of Ohio, Dawson's, 66 



Color Key to N. Am., 148 



Records of Ohio, 112 

 Bryophyta, 388 



Buds of Ohio Trees, Winter, 505 

 Caenia fumosa, 65 

 viridis, 65 

 Cambarus hinei, 401 

 Carnivore, Our Smallest, 251 

 Cataloguing of Collections, 62 

 Catalpas, Kev to, 496 

 Cedar Point JFlora, 186, 540 

 Chelanops oblongus, 407 

 Chicken Islands Flora, 190 

 Chilocorus similis, 49 

 Chionaspis sylvatica, 95 

 Chrysanthemum leucanthemum, 56 

 Chrysops calopterus, 392 

 coquelletti, 220 

 dimmccki, 393 

 melanopterus, 391 

 pachycnemius, 391 



Cicada delicata, 498 

 erratica, 497 

 Clasping Organs, Pediculidae, 107 

 Classification of Plants, 298 

 Commelina nudiflora, 448 

 Cone of Pinus laricis, 396 

 Corn, Development of Grain, 3 

 Cray fishes, 310 

 Cucumis sativus, 423 

 Dandelions, 74 



Descriptions of Mallophoga, 528 

 Deciduous Leaves, 163 

 Desmids, A Few Ohio, 349 

 Dichaeta, 64 



Disease of Seed Peas, 507 

 Dissecting Tray, 66 

 Diptera, 63 



Division in Ascaris, 519 

 Dogwoods, Key to, 419 

 Dragonflies, 310 



Drainage, Changes in Lancaster, 149^ 

 Elms, Key to Ohio, 315 

 Embryo of Batrachium, 353 

 Cucumis, 423 

 Nelumbo, 167 

 Staphylea, 320 

 Ephydridae, 63 

 Epistylus flavicans, 327 

 Equisetum laevigatum, 74 

 Errata, 74, 148 

 Expansion of leaves, 210 

 Fall Webworm, 453 

 Fasciation in Plants, 47 

 Faunal Lists, a Suggestion, 462 

 Ferns, Ohio, 205 



Flora, Cedar Point, 186, 540, 544 

 Chicken Islands, 190 

 Shale Bluffs, 499 

 Fontaria indianae, 161 

 Fossombronia cristula, 58 

 Free-floating Plants, 420 

 Fulgorid, Root Infesting, 42 

 Fulgoridae, new species, 44, 373 

 Gall Insects, 115, 140 

 Literature of, 133 

 Mouthparts of, 121, 124 

 Diptera, 125 

 Hemiptera, 126 

 Hymenoptera, 126 

 Lepidoptera, 127 

 Ovipositors of, 121, 122 

 Gallinule, Purple, in Ohio, 553 

 Galls, 115, 140 



Development of, 144 

 Epidermal Structures of, 120 

 Flower, 115 

 Fruit, 115 

 Histology of, 117 



ji/^^-r 



