5d4 
Basin channel, erect fossil tree in, 238. 
Basin Claim, 117. 
Bass’s Ranch, fossils from, 36. 
Bath, 94, 497. 
channel near, 107. 
Bead, marble, found under Table Mountain, 266. 
Bean Hill, 101. 
disturbances of gravel since its deposition, 474. 
Bear Creek, tailings accumulating in, 425. 
Bear Hill, fossil wood at, 239. 
Bear Mountain Range, 121, 515. 
Bear River and branches, distribution of gravel and vol- 
canic on, 304. 
Bear River Mines, character of gravel in, 372. 
Beckman Hill, 195. 
Bed-rock, character of, near Forest City, 434. 
in Goodyear’s district, 83-89. 
at Indiana Hill, 417. 
on North Sau Juan Divide, 386, 392. 
near Smartsville, 381. 
described, 29-31. 
decomposition of, under gravel, 434, 447. 
depressions and furrowings in, 517. 
geological age of, 314. 
gold contained in, without quartz, 352. 
grooves and furrows in, 413 
irregularity of surface of, near Spanish Ranch, 473. 
lithological character of, in general, 42, 43. 
recent disturbances in, near La Porte, 447. 
sometimes no gold on, 361. 
Bed-rock surface, everywhere worn, in district surveyed by 
Goodyear, 517. 
the shaping of, the work of water, 295 
smoothing of, 490. 
Bed-rock surface and the channels, discussion of phenomena 
of, 333-349. 
Bell’s Bar, channel near, 470. 
Betton Ravine, 145. 
Birchville Mines, 389. 
Birdseye Cafion, 165. 
Bison latifrons, from Millerton, 247. 
from Pilarcitos Valley, 247. 
Black Diggings, in Humbug Cajon, 397. 
Blackhawk Claim, Bottle Hill, 111. 
Blackrock Cafion, fossil tree in, 237. 
Blackrock Creek, basaltic lava in bed of, 467. 
Blacksmith Flat, 98. 
Blake, Gorham, information from, 264. 
Blake, W. P., his views of the high gravels, 68. 
Blue Bank Mine, 402. 
Blue Bluff, 163. 
Blue Cajion Station, 162. 
Blue Gravel, on North San Juan Divide, 203, 387. 
at Omega, 410. 
at Polar Star Mine, 421. 
theory and occurrence of discussed, 324—326, 509. 
Blue Gravel Claim, 441, 442. 
Blue Lead, nature and theory of discussed, 293, 324, 325, 
508, 509. Ee cepts & 
INDEX. 
Blue Tent, 412-414. 
Blue Tent Company’s Mine, water used at, 372. 
Blue Wing Mill, limestone at, 124. 
Bodie Mines, unreliable character of, 312. 
Bogoliubsky, his views in regard to Russian gold mines, 875. 
Bogus gravel, near La Porte, 446. 
at Poverty Hill, 454. 
Bonanza Tunnel, near Potosi, 451. 
Boston Claim, near Blue Caton Station, 162. 
in Tuolumne Table Mountain, 135. 
mortar found in, 266. 
Boston Mine, on North San Juan Divide, 402. 
Bottle Hill, 111. 
Boucher de Perthes, first discoveries of implements in gravel 
by, 258. 
Boulders, large, in gravel, at American Hill, 388. 
coarse stratum of, at Indian Hill, 429. 
how got rid of, in mining claims, 162. 
occasional immense size of, discussed, 324. 
Bovide, remains of, in gravel, 246, 247. 
Bowen’s Tunnel, near Michigan Bluff, 98. 
fossil leaves from, 234. 
Bowie, A. J., Jr., his article on hydraulic mining cited, 196, 
373. 
Bowl-like ending of channel, at French Corral, 387. 
Bowman, A., notice of implements under lava, at Oroville, 
278. 
Bowman, S., information from, about human bones under 
lava, 277. : 
Bowman Dam, altitudes near, 407. 
Bowman Reservoir, 198. 
Boyce, H. H., M. D., testifies to finding human bones under 
lava near Placerville, 276. 
Brandy City, mines at, 461. 
skull of horse, in gravel, at, 257. 
Brandy City and Eureka Ridge, 460-464. 
Break, geological, between Jurassic and Cretaceous, 315. 
Breccias, voleanic, how accumulated in the Sierra, 524. 
Bret Harte, his poem, “‘'The Calaveras Skull,” 270. 
Brink Claim, 149. 
Brockmann’s Mine, 169. 
Brownsville, 87, 101. 
Brush Creek, near Nevada City, implements in gravel from, 
277. 
Brushy Cafions, 95, 106. 
Buekeye Company, near Dutch Flat, 151, 422. 
Buckeye Hill, on North San Juan Divide, 389. 
Buckeye Tunnel, Tuolumne Table Mountain, section at, 134. 
fossils from, 245. 
Buckeye Ravine, Mariposa County, implements in gravel, 262. 
Buckeye-Sucker Claim, 84, 97. 
Buena Vista Lake, vertebrate fossils from, 256. 
Buffalo Hill, 98. 
Bunker Hill Tunnel, 460. 
Butte City, gravel basin at, 505. 
Butte County, implements in gravels, 277, 278. 
Byrd’s Valley, 84, 93. 
crystallized gold from, 358. 
implements in gravel from, 277. 
