None
359 Tillodonts, 333 Time, influence of, in geological change, n, 12 Tinoceras, 333*. 334 Titanic iron, 130 Toads, fossil, 341 Toarcian, 309 Tombstones, weathering of, 14 Topaz in granite, 164 Torsion, effects of, 187 Tortoises, fossil, 320, 322 Toxoceras, 319*, 320 Trachyceras, 294 Trachyte, 162 Transport of sediment by running water, 26 Transition Rocks, 239 Travertine, 57, 58*, 154, 155 ; preser- vation of animal remains in, 91 Trees, fossil, in sandstone, 180*; stumps of, as evidence of change of level, 218 Tree-ferns, fossil, 287, 293 Tremadoc Slates, 233, 247 Trematosaurus, 294 Tremolite, 133 Triassic, 232, 291 Triclinic, 126* Trigonia, 302*, 308, 318* Trilobites, 221, 244*, 253, 254*, 263*. Zaphrentis, 251, 276, 277* Zechstein, 232, 289 Zeolites, 132* Zinc-sulphide, 209 Zone of fossils, 222 Zones (in stratigraphy), 303 WVBRSITT THE END Printed by R. & R. CLARK, Edinburgh. THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW AN INITIAL FINE OF 25 CENTS WILL BE ASSESSED FOR FAILURE TO RETURN THIS BOOK ON THE DATE DUE. THE PENALTY WILL INCREASE TO 5O CENTS ON THE FOURTH DAY AND TO $1.OO ON THE SEVENTH DAY OVERDUE. JUL 17 1935 ii nn Si C\ 10*^7 APR iy w* MAR 2 1933 JUL31 1942 Ml ikt , «**** . .*!*.« LD 2l-100m-8,'34 YB 16786 UNIVERSITY OF CALIFORNIA LIBRARY *'• '. 