Index to Volumes IV, V and VI . 



Planarian, 254 

 Plant Notes, 20 



Tissues, Imbedding, 344 

 Plants, Classification of, 298, 386, 

 513 

 Free-floating, 420 

 Hibernacula of Water, 291 

 Injurious, 16, 32, 69 

 Kev to Woody, 277, 364 

 Mat, 265 



Maximum Height of, 23 

 New and Noteworthy Ohio, 



492 

 New and Rare Ohio, 475 

 Nutating, 214 

 Nutation of, 30 

 Poisonous, 16, 32, 69 

 Rare Ohio, 61 

 Self-pruning, 450 

 Species of, fcr Ohio, 492 

 With Compound Leaves, 



340 

 With Glands, 103, 399 

 With Nodding Tips, 267 

 With Tendrils, 305 

 Platymetopius obscurus, 274 

 Polydon spatula, 24 

 Poplars, Key to, 271 

 Porkelesia setigera, 373 

 Protophyta, 388 

 Protozoa, Brush Lake, 394 



Growth in, 327 

 Pseudcscorpion from Guatemala, 



489 

 Pseudcsccrpionidae, 407 

 Psilopa fulivpennis, 64 

 Pteridophyta. 388, 390 

 Pteridophyte, 255, 483 

 Pteridophytes, Ecological Notes on 



295 ' 

 Putcrius allegheniensis, 253 

 Reducing Division in Ascaris, 519 

 Reduction Division, 331 

 Remarks on McUusca, 449 

 Report on Mosquitoes, 438 

 Rusts, Experiment with, 57 

 Salix amygdaloides, 14 

 babylDnica, 13 

 fragilis, 13 

 interior wheeleri, 11 

 nigra, 14, 15 

 pentandra, 12 

 sericea, 14 



Sanguinaria canadensis, 379 

 Sassafras, Jacket Layer in, 192 

 Scalops aqviaticus :nachrinus, 213 

 Self-pruning, 450 

 Seridentus denticulatus, 203 

 Sex Organs in Aelosoma, 435 

 Sexual and Nonsexual Genera- 

 tions, 473 

 Shale Bluffs, Flora of, 499 

 Shrubs, Winter Buds of, 505 

 Silvius, 229 

 Skull, vertebrate, 52 

 Snowiellus attratus, 230 

 Sparrow, English, 518 

 Staphylea trifoliata, 320 

 Stobaera minuta, 376 

 pallida, 375 

 Struggle for Life on a Sandbar, 302 

 Stylopidae, 443 

 Sumacs, Key to, 293 

 Sunflower, A New, 214 

 Survey, Natural History, 471 

 Tabanidae, 217 

 Tabanus, 231 



flavidus, 236 



laticeps, 239 



laticornis, 239 



csburni, 241 



productus, 242 



vivax, Life History of, 1 

 Trees, List of Ohio, 457 



Winter Buds of, 505 

 Tendrils, Ohio Plants With, 305 

 Terminclcgy of Organs, 541 

 Thamnctettix furculatus, 275 

 Thysanura, Key to, 545 

 Tinobregmus vittatus, 9 

 Topography of Clifton Gorge, 75 



She re Line, 61 

 Trembles in Stock, cause, 463, 477 

 Twigs of Hackberry, 215 

 L'^nionidae, 309 

 Uredineous Culture Experiments, 



Index 78 

 Velia brunnea, 204 

 Vertebrate Skull, 52 

 Viburnums, 551. 

 Walnuts, Key to Ohio, 307 

 Willows, Interesting Ohio, 11 



Summer Flowering, 15 

 Wright, Professor A. A., In 



Memcriam, 357 



INDEX TO AUTHORS. 



Berger, E. W., 407, 453, 489, 552. 

 Burgess, A. F., 49, 438. 

 Bueno, J. R., DE LA Torre, 287. 

 Claassen, Edo, 58, 157, 312, 503, 530. 

 Clevekger, Joseph F., 272. 

 Coberly, E. D., 47, 98, 114. 



