2638 
Speedwell, Germander, 164 
species of, 165 
Spicules, 56 
Spiders, 9, 64 
Spirogyra, 225 
Sponges, 32, 55 
Spurn Point, 21 
Squirrels, 192 
Stags, fossil remains of, 92 
Starfish, 59 
Stegosaurus, 87 
Stems, kinds of, 121 
Steneosaurus, 88 
Sticklebacks, 242 
Stigmaria, 101, 170 
Stipules, 126 
Stitchwort, Greater, 164 
Lesser, 164 
Stone-flies, fossil, 67 
Strawberry, Wood, 199 
Striations, 38 
Stromboli, 25 
Sundew, 228 
Sweet Cicely, 161 
Tadpoles, 158 
Teleosaurus, 88 
Temperature, 12 
Terebella, 222 
Terebratula, 68, 70 
Terms, technical, 12 
Tertiary Period, 50 
Theromorphs, 51 
Thrift, 232 
Thrush, Song, 162 
Tiger, Sabre-toothed, 92 
Toadflax, 165 
Toads, 158 
Toadstools, 199 
Torridon Sandstone, 48 
Tree-ferns, 49 
Triassic Period, 50, 51 
a 
THE OPEN BOOK OF NATURE 
Trilobites, 48, 49, 65 
Trout, 19, 207 
Turrilites, 78 
Tutsan, 157, 197 
Tyrannosaurus, 87 
Vasculum, 117 
Vermes, 63 
Vertebrata, 79 
Vesuvius, 25 
Vetch, Bush, 209 
Tufted, 209 
Violets, Dog, 187 
Sweet, 187 
Volcanic activity, 207 
Volvox, 224 
Wagtail, Pied, 172 
Walnuts, fossil remains of, 102 
Warty Caps, 201 
Watercress, 171 
Water Crow, 208 
Water Fleas, 65, 158, 214 
Water Mint, 232 
Water Ouzel, 208 
Water, work of running, 14° 
Whin, 206 
Wild-flower garden, 136 
Willow, Goat, 195 
Willow Herb, Great Hairy, 145 
Wind-flower, 197 
Wind, work of, 17, 24 
** Witches’ Brooms,’ 179 
Wolves, fossil remains of, 92 
Wood Anemone, 197 
Woodbine, 199 
Wood-lice, 65, 66 
Wood Sorrel, 196 
Worms, 63 
Worm-tubes, 64 
Woundwort, Hedge, 153 
Yellow Rattle, 204 
BILLING AND SONS, LED., PRINTERS, GUILDFORD. 
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