732 The American Naturalist. [September, 
contain information regarding the Solar and San-Ch’uan T’ujen vocab- 
ularies, the plants of Thibet, and the mean monthly temperature. A 
route map of the explorations made by the author, and a table of 
latitudes, altitudes, etc., accompany the book. The illustrations are 
numerous, comprising page plates and cuts in the text. 
Publications of the United States Geological Survey for 
1893-4. FOURTEENTH ANNUAL Rerort.2—This work is issued in two 
parts. Part I containing the Report of the Director on the operations 
of the Survey of 1892-92 administration, together with several reports. 
Part II comprises the accompanying papers embodying the results of 
the topographic and hydrographic work of the survey, and of the geo- 
graphical investigations carried on through its aid. These researches 
were prosecuted chiefly in Virginia, West Virginia and Maryland, in 
Vermont and Massachusetts, in certain Rocky Mountain areas, and the 
Pacific coast region. 
The illustrations are numerous, comprising 76 plates and 75 figures 
and diagrams, 
A MANUAL or TopocrapHic Mreruops.’—This manual is one of 
the series of monographs published by the United States Geological 
Survey in quarto form. Its object, as stated by the author in his intro- 
duction, iå to present a description of the topographic work, instru- 
ments and methods used by the United States Geological Survey pri- 
marily for the information of the men engaged upon this work. The 
` manual is accompanied by a collection of constants and tables used in 
the reduction of astronomical observations for position, of triangulation, 
of light measurements, and other operations connected with the making 
of topographic maps, and is illustrated by eighteen plates showing 
types of topography 
MINERAL Resources OF THE UNITED Srares.‘—This report for the 
calendar year 1893 is the tenth in the series. The subject-matter in- 
cludes: First, a statement of the mineral products ; secondly, the indus- 
trial conditions affecting these products ; and thirdly, recent additions 
? Fourteenth Annual Report of the United States Geological Survey, 1892-93. 
Part I.—Report of the Director. Washington, 1893. Part [1.—Accompanying 
Papers.. Washington, 1894. 
3 Monographs of the United States Geological Survey, Vol. XXII. A Manual 
of Topographic Methods. By Henry Gannett. Washington, 1893 
t Mineral Resources of the United States for the Calendar Var 1893. By 
David T. Day. Washington, 1894 
