INDEX. 
Towa Hill Ridge, amount of gravel remaining on, 488. 
Trish Hill, 89, 102. 
Tridosmine, occurrence of, on Pacific Coast, 365. 
Tron, metallic, found in basalt at Ovifak, 366. 
ores of, universally disseminated, 353. 
Tron sand, in gold washings, 362. 
Jackass Gulch, near Volcano, limestone at, 87. 
diamonds found at, 364. 
Jackass Gulch, near Elizabethtown, 472. 
Jackson, Amador County, 127. 
Jackson Butte. 127. 
Jackson Diggings, on Wash Creek, 479. 
Jacobs & Sargent, their mines at Quaker Hill, 179, 4238. 
Jamestown, surface mining at, 138. 
Jamison City, cement and boulders at, 478. 
Jehoshaphat Claim, near Dutch Flat, 149. 
nt altitudes near, 418. 
Jenny Lind Diggings, 183. 
Johntown, bed-rock near, 85. 
Jones, William, M. D., his connection with the discovery of 
the Calaveras skull, 267. ) 3 
Jones’s Hill, near Georgetown, 103, 107, 111. 
Joyce’s Tunnel, near Remington Hill, 176. 
Juniata Claim, 153. 
Jurassic fossils, from auriferous slates, 36, 37. 
Kanaka Creek, 439. 
Kate Hayes Diggings, 387. 
Kawsoh Mountains, Nevada, locality of infusorial silica, 227. 
Kelsey’s Diggings, locality of implements in gravel, 277. 
Kentucky Flat, 97. 
= locality of fossil wood, 238, 239. 
Keystone Saw-Mill, near Nevada City, 191. 
Kinder’s Diggings, near Lowell Hill, 175. 
Kincaid Flat, limestone at, 123. 
locality of vertebrate remains and of imple- 
ments, 247, 257, 263. 
King’s Hill, 83, 112, 117. 
faulted bed-rock at, 348. 
Kingsville, 88. 
Klamath River, its gravels auriferous, 55. 
Klipstein’s Claim, near Remington Hill, 176. 
Knapp’s Ranch, near Columbia, 139. 
Knickerbocker Ravine, near Quaker Hill, 179. 
Knott’s Ranch, Mohawk Valley, 478. 
Ladies’ Cafion, 114. 
Lake City, 394. 
Lama, fossil, from creek near Indian Gulch, 248. 
La Porte, gold shipments from, 212. 
section near, 344. 
ee + vicinity of, described, 445-452. 
‘La Porte and Gibsonville Ridge, 467. 
Last Chance, 84. 
Laur, P., his views about the gravels, 70. 
Laurite, occurrence of, 365. 
561 
Lava, silicified, 328. 
sheets of, penetrating gravel, near La Porte, 448. 
near Portwine, 455. 
white, at Bath, 496. 
near Placerville, 503. 
its origin and nature discussed, 522. 
Lava capping, on ridge between Cafion and Little Cafion 
Creeks, 459. 
general character of, in Sierra Nevada, 514. 
on ridge between Camptonville and Forest 
City, 432. 
between Columbia and North Bloomfield, 398 
in vicinity of Forest City, 432. 
above North Bloomfield, 399. 
on summits of Sierra Nevada, 32. 
head of Wolf Creek, near Forest City, 440. 
Lava slides, on Washington Ridge, 412. 
Lead, native (?) in gold washings, 366. 
Leaves, fossil, difficulty of obtaining perfect ones, 232. 
at Indian Hill, 430. 
at Roach Hill, 97. 
Lebanon Tunnel, N. Y. Cafion, 91, 103, 105, 113, 117. 
Leidy, J., M, D., animal remains referred to him for descrip- 
tion, 240. 
Lesquereux, L., results of examination of fossil plants by, 
234, 235. 
Liberty Hill, 143, 155. 
Limestone, at Blue Wing Mill, 124. 
in Calaveras County, 123. 
at Columbia, 124. 
mining on, 138, 139. 
at Kineaid Flat, 123. 
of Sierra Nevada, 47, 48. 
between Sutter Creek and Volcano, 88. 
at Sonora, 123. 
at Springfield, 123. 
of the Sierra, supposed to be of Carboniferous age, 
41, 
near Volcano, 87. 
Little Grass Valley, in Feather River Basin, and vicinity, 
466-470. 
Little Grass Valley, near Volcano, locality of implements in 
gravel, 275. 
Little Spanish Hill, near Placerville, 99. 
Little Truckee River, locality of infusorial silica, 227. 
Little York and vicinity, 156, 159, 422. 
Live Yankee Company, at Forest City, 213. 
Loafer Hill, near Fiddletown, 102. 
Loganville, below Sierra City, 443. 
Lola Montez Diggings, 183. 
Lone Ridge and Montezuma Hill, vicinity of, examined, 390. 
Longitudinal compression of bed-rock series, 49. 
Long Tom Ravine, 185. 
Lost Camp, 162. 
Lowell Hill, 175. 
Lowell Hill and Remington Hill, examination of vicinity of, 
174-177. 
Lava, fragmentary character of, in region explored by Good- | Lyell, Sir Charles, ignores all evidence of Tertiary age of 
year, 573. 
man, 282. 
