132 The American Geologist. Feb. i89i 
mouth of Canoe creek, in Kentucky, on the Ohio. These, with a 
few teeth and claws from various places, and now in different col- 
lections, constitute nearly all the material available for the stud}' 
of Megalonyx. No pelvis has yet been found with the exception 
of a fragment or two. 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
Ninth Annual Report of the United States Geological Survey to the 
Secretary of the Interior, 1887-88. By J. W. Powell, Director, pp. 
xiii, 717 ; with 88 plates and maps, and 61 figures in the text. ( Wash- 
ington, 1889.) 
Though this volume relates to the work done during the fiscal year 
ending June 30, 1888, and the imprint bears date of the next year, it 
was distributed to the working geologists of the country so late as Decem- 
ber, 1890. The first 200 pages contain the report of the director, and 
the administrative reports of chiefs of divisions, with a financial state- 
ment of the disbursements for the Survey during the year. So long de- 
lay in the publication has been due, probably, to the slow progress in 
printing the accompanying papers, which make up the remainder of the 
volume, namely : The Charleston Earthquake, by Capt. C. E. Dutton ; 
The Geology of Cape Ann, Massachusetts, by Prof. N. S. Shaler ; Forma- 
tion of Travertine and Siliceous Sinter by the Vegetation of Hot Springs, 
by Mr. W. H. Weed ; and Geology and Physiography of a portion of north- 
western Colorado and adjacent parts of Utah and Wyoming, by Dr. C. 
A. White. A review of Dr. White's paper has been already given in our 
January number, and the other papers will be noticed later. 
Lake Bonneville. By Gkove Karl Gilbert, pp. xx, 438 ; with a 
large folded map, 51 plates, and 51 figures in the text. (Monographs 
of the U. S. Geological Survey, vol. i, 1890.) The largest one of the 
many lakes which were formed during the Pleistocene period in the 
Great Basin, named lake Bonneville for the earliest explorer of its re- 
gion, covered at its maximum stage an area of 19,750 square miles, lying 
mostly in northwestern Utah but extending also into the borders of 
Nevada and Idaho. It was about ten times as large as its present repre- 
sentative, Great Salt lake, which, having a mean night of 4,208 feet 
above the sea, lies 1,000 feet below the highest of the ancient shore- 
lines. The maximum depth of the Pleistocene lake was about 1,050 feet, 
while that of Great Salt lake, in its range from the lowest to the high- 
est stage within the past forty years, is from 36 to 49 feet. The hydro- 
graphic basin of lake Bonneville comprised a fourth part of the Great 
Basin, whose total area is estimated to be 210,000 square miles ; almost 
