Reviciv of Recent Geological Literature. 63 
tion, exposed on the shore of Eschschohz bay and in other localities, 
and the overlying Kowak clays, which contain many mammoth bones 
and tusks; but Dr. Dall inclines to assign them (and also the beds up to 
5,000 feet in the basal part of Mt. St. Elias, containing numerous species 
of marine shells, all now living, as described by Russell) to Pliocene 
rather than Pleistocene time. The concluding portion of the paper and 
its appendices treat very fully of Alaskan paleontology. 
Immense supplies of a variety of asphalt, named uintaite by Prof. W. 
P. Blake in 1885, but more recently known commercially as gilsonite, 
occur in the west half of the Uinta basin of Utah. The uintaite, as 
described by Mr. Eldridge, fills straight vertical cracks in Eocene strata, 
its veins being from a sixteenth of an inch to eighteen feet across, and 
from a few hundred yards to eight or ten miles long. The cracks are 
thought to have originated when the gentle synclinal fold of this basin 
was formed, and to have been immediately filled by injection of the 
asphalt in a plastic or melted condition: but the author cannot suggest 
the condition in which it existed prior to its flow into the cracks. 
Uintaite is chiefly used in the manufacture of varnishes, for which it is 
delivered in St. Louis and Chicago at $40 to $50 per ton. 
Mr. Stanton, from his study of the Chico and Tejon faunas, refers 
the former to the Cretaceous and the latter to the Eocene. The sup- 
posed Tertiary types in the Chico fauna are shown to be few and limited 
to persistent species which have changed little from the Cretaceous to 
the present day. In California these formations are conformable, 
wherever sections have been discovered; and it is suggested that the 
later fauna was not here developed from the earlier, but succeeded to its 
place by migration. 
Part II comprises eight important papers, as follows: The Gold- 
quartz Veins of Nevada City and Grass Valley, California, by Walde- 
mar Lindgren, pages 1-262, with 24 plates, and zi figures in the text; 
Geology of Silver Cliff and the Rosita Hills, Colorado, by Whitman 
Cross, pages 263-403, with plates 25-36; The Mines of Custer County. 
Colorado, by Samuel Franklin Emmons, pages 405-472, with plate zi^ 
and figures 38-43; Geologic Section along the New and Kanawha Rivers 
in West Virginia, by Marius R. Campbell and Walter C. Mendenhall, 
pages 473-511, with plates 38-49; The Tennessee Phosphates, by Charles 
Willard Hayes, pages 513-550, with plates 50-55, and figure 44; The 
Underground Water of the Arkansas Valley in Eastern Colorado, by 
Grove Karl Gilbert, pages 551-601, with plates 56-68, and figures 45-49 
(reviewed in the Am. Geologist, Jan., 1897, Vol. XIX, pp. 57-60); 
Preliminary Report on Artesian Waters of a Portion of the Dakotas, by 
Nelson Horatio Darton, pages 603-694, with plates 69-107, and figures 
50-65 (reviewed in the last April Am. Geologist, pp. 274-6); and The 
Water Resources of Illinois, by Frank Leverett, pages 695-828, with 
plates 108-113, and figures 66-70 (reviewed in the last June Am. Geol- 
ogist, p. 418), to which a final chapter. An Account of the Palaeozoic 
Rocks Explored by Deep Borings at Rock Island, 111., and its Vicinity, 
is contributed by J. A. Udden, pages 829-849, with figures 71-74. 
