LIST OF ILLUSTRATIONS.

		PAGE
1	Portrait of Author	Frontispiece
[2]	Venus’s Fly-trap	20
[3]	Round-Leaved Sundew	25
[4]	Protomyxa Feeding	34
[5]	Fresh-Water Hydra	37
[6]	Star-fish Opening an Oyster	45
[7]	Common Earth-worms	60
[8]	Fiddler-Crabs	72
[9]	Warty Hermit-Crabs	75
[10]	Agalena and Her Funnel-Web	79
[11]	Lepismas at Work	88
[12]	You-ee-up in His Den	91
[13]	Seventeen-year Cicada	97
[14]	New-born Cicada	99
[15]	Dome-like House of Cicada	101
[16]	Blossom of Cucurbita	105
[17]	Nest of Lasius	109
[18]	Brachinus Pursued by an Enemy	112
[19]	Common Tiger Beetle	117
[20]	American Luna Moth	123
[21]	House-builder Moth	129
[22]	Pseudargiolus Butterfly	134
[23]	Violacea Butterfly	138
[24]	Neglecta Butterfly	142
[25]	Mourning-Cloak Butterfly	146
[26]	Leaf-Cutter Bee at Work	150
[27]	Battle Between Ants	154
[28]	Nest of Common Sun-fish	159
[29]	Black-nosed Dace	163
[30]	Common American Eel	172
[31]	Rana Clamata, or Green Frog	177
[32]	Common American Toad	181
[33]	Northern Rattlesnake	189
[34]	Mother Black Snake	192
[35]	Summer Green Snake	195
[36]	Water Snake	196
[37]	Common Box Tortoise	201
[38]	Summer Ducks and Young	206
[39]	American Woodcock	214
[40]	Female Piping Plover	220
[41]	Home of Bob White	225
[42]	Ruffed Grouse in Spring-time	235
[43]	Mexican Wild Turkey	241
[44]	Nest of American Osprey	247
[45]	Female Turkey Buzzard Dining	259
[46]	Nest of the Robin	264
[47]	Red-winged Blackbird’s Nest	266
[48]	Double Nest of Orchard Oriole	268
[49]	Female Baltimore Oriole	270
[50]	Acadian Flycatchers	272
[51]	Long-billed Marsh Wrens	274
[52]	Golden-Crowned Kinglets	275
[53]	Lace Hammock of Parula Warbler	276
[54]	Three-story Nest of Yellow Warbler	278
[55]	Saw-whet Owl and Chickaree Squirrel	282
[56]	Hackee, or Chipping Squirrel	287
[57]	My Dog Frisky	292
[58]	Tom on Duty	297
[59]	Jack at Dinner	305
[60]	Australian at Home	311
[61]	Representative Life of Western Asia	319
[62]	Seedling of Winter Grape	325
[63]	Tip of Radicle of Seedling Maple	331
[64]	Wonderful Equine Intelligence	347
[65]	Papier-Maché Palace of the Hornet	353
[66]	Unsolicited and Unlooked-for Kindness	357
[67]	Exhibition of Grandeur	378
[68]	Four Orphaned Robins	389
[69]	Mated for Life	396
[70]	Evidence of Conjugal Affection	400
[71]	Life in the Primordial Sea	410
[72]	Carboniferous Times	412
[73]	Mesozoic Flora and Fauna	415
[74]	Palæolithic Men Attacking Cave Bear	448
[75]	Era of Mind and Heart	462