64 Scientific Intelligence. 
lized matter. At the rise of temperature these substances will 
melt one by one, and absorb heat in so doing. 
12. Contributions to the Hydrography of the Siberian Sea; 
ETTERSSON.—This is a second paper by the same 
author as that above noticed, it tains a long and valuable 
series of observations m in apn wish the Vega expedi- 
specific gravity and the per Sade of ocaies. as also that of 
salt deduced from the observed specific gravity. ese observa- 
tions were taken mostly in the Kara Sea, an admirable hydro- 
graphic chart of which accompanies the memoir. 
Il. GroLocy AND MINERALOGY. 
. Second Annual Report of the U. 8S. Geological Survey to 
ie “Seeretar y of the Interior, for the year 1880-81; Ree. ae 
WELL, Director. Washington, 1882; pp. iv and 588, 4to, with 
LXI Plates, Figs. 1-32, and a Map, in pocket, showing distribu- 
tion of the strata and eruptive rocks in the Western part of the 
Plateau Province.— volume is the first annual report of the 
Geological Survey ‘mca under the directorship of Mr. Powell, 
who, at the close of the fiscal year for which it is issued, had hel ld 
the position for less than three and a half months. The work 
reported upon was begun under the direction of his predecessor, 
My, Clarence King, and no change was made in his plans and 
h The volume opens with the Report of the eeu age 
which is followed by the administrative reports of the heads of 
divisions and by abstracts of the a copes raphs which are 
in preparation by the Survey. graphs. 
gn 
San ral reading pub These papers are as follows: The 
Tels: fone of oa Grand Cafion District, by Capt. C. E. 
; Contributions to the mg of Lake Bonneville, by 
o. a Gilbert; Abstract of Report on Geology ai Mining 
Industry of Leadville, Lake Cage, lovee by 5S. F. Emmons ; 
Summary of the Geology of the Comatock Lode and the 
Washoe District, by George F. Becker; Production of the 
Precious Metals of the United States, b "Careane King. The 
volume ends with a paper by Mr. G. Gilbert on “A New 
Method of Measuring Heights by Means of the Barometer.” 
Both of Mr. Gilbert’s papers, and also the one by Mr. Emmons, 
have already been noticed in this Journal, as have also two of the 
monographs which have been issued since the publication of this 
annual report, viz: those by Capt. Dutton and Mr. Becker. 
The Report of the Director is introductory to the volume. It 
epitomizes the various papers included and details the plan of 
publication. Reference is made to a report, in preparation by 
Eliot Lord, on the history of the Comstock Lode, and an account 
is given of Dr. R. D. Irving’s investigation of the ig rat ats ii 
