LIST OF ILLUSTRATIONS 



XIX 



PAGE 



Fig. 197. — Pennsylvania Saxifrage, Saxifraga pennsyhanica . . 178 



Fig. 198. — Sensitive Fern, Onoclea sensibilis 179 



Fig. 199. — Sour Gum, Nyssa sylvatica 180 



Fig. 200. — Swamp Holly, Ilex verticillata 181 



Fig. 201. — Meadowsweet, Spiraea latijolia . . . . . .181 



Fig. 202. — Steeplebush, S. tomentosa 181 



Fig. 203. — Royal Fern, Osmunda regalis . . . . . . .182 



Fig. 204. — Clayton's Fern, Osmunda Claytoniana . . . . . 182 



Fig. 205. — Cmndim.onYQxn, Osmimda cinnamomea . . . . 182 



Fig. 206. — Second Type of Pond 183 



Fig. 207. — Shruhhy Cmq\itio\\, Poteniilla fruticosa . . . . 184 



Fig. 208. — ^A Small Clam, Sphaerium simile 184 



Fig. 209. — Nymph of Anax 184 



Fig. 210. — Nymph of Leucorhinia iniacla, after Shelford . . . 185 

 Fig. 211. — Adult Libellula pulchella, ivouiNeedhnTa .... 185 

 Fig. 212, a and B — Aquatic Insects and Their Young . . 186, 187 



Fig. 213. — Diving Spider, Dolomedes sexpunctatus . . . .188 



Fig. 214. — The Eft, Diemictylus viridescens 189 



Fig. 215. — Garden Spider, Argiope 190 



Fig. 216. — Tettix graniilatiis , Tettigidea lateralis 190 



Fig. 217. — Short-horned Locust, Tryxalis brevicornis .... 191 

 Fig. 218. — Short-winged Green Locust, Dichromorpha vlridus . .191 

 Fig. 219. — Slender-bodied Locust, Leptysma marginicolUs . . . 191 



Fig. 220. — Hoosier Locust, Paroxya hoosieri 191 



Fig. 221. — Scudder's Paroxya, P. scudderi 191 



Fig. 222. — Striped Ground Cricket, Nemobi us fascial us . . . 192 

 Fig. 223. — Leather-colored Locust, Schistocerca alutacea . . . 192 

 Fig. 224. — Nebraska Locust, Phaetalioles nebrascensis . . . .192 

 Fig. 225. — Marsh Conehead, Conocephalus palustris .... 192 



Fig. 226. — A Sphagnum Bog 193 



Fig. 227. — The Slender Sedge, Carex Jiliformis 193 



Fig. 228. — The Shore Sedge, C riparia 193 



Fig. 229. — ^An Orchis, Arelhusa bulbosa . 194 



Fig. 230. — The Bearded Orchis, Calapogon pulcheUus . . , .194 



Fig. 231. — ^The Sundew, Drosera rotundijolia 195 



Fig. 232. — 'Tickseed, Coreopsis grandiflora 195 



Fig. 233, — Cottony Grass, Eriophorum gracile . . . ... 195 



Fig. 234. — Swamp Horsetail, Equisetum fluvlatile 195 



Fig. 235. — Swamp Fern, Aspidium Thelypteris 195 



Fig. 236. — Sphagnum Moss . . . . 195 



Fig. 237. — Ragged Orchis, Habenaria lacera 196 



