Pp fan SCS er Pe ee Rg ee Ty PER SN Bien ee a see es a ea eee Rig Seige i, Pe A ee = ae eE ae 
Miscellaneous Bibliography. 151 
thor offers his views and speculations. The author does not ap- 
pear to be thoroughly acquainted with either of the above 
tioned openoet, and quot me se his poolegier facts pawl 
His se 
<a with some espe ye wae in an —— manner, 
ysics i with moder 
views and the rec sear pearl of science, wn ch will be consulted 
as a series of articles, 
7. Strength “4 Tron parts of Steam Machinery. By J. D. 
Van Buren, Jr. C.E. 70 pp. 8vo. New York, 1869, (Van Nos- 
trand. )—This i is an analytical oni of the formule employed 
by mechanical engineers in determining the rupturing or crippling 
pressure in the ‘ifferent parts of a machine. The formule are 
founded upon the principle that ipnse different parts of a machine 
e dev 
Publications of the Geological Survey of California.—The publications of the 
son Survey of ‘California issued up to this date, or nearly ready, are as 
_ GEoLoey, — i, with 525 pages of text, in royal 8vo forms geet — 
ings and 1 steel plate; containing a Report of Progress an io BE ee 
Field Work. 2 1860 to 1864, Price in cloth, $7.50 
li phic 
plates, comprising descriptions and figures of the Cretaceous and Triassic fossils, 
can: M. — and of ie oe Jurassic and Carboniferous, by F. B. Meek. Price i in 
“sesuaoxn aces vol. 2, with 299 pages of text, and 86 lithographic —* 
taining the reniaaier of the Cretaceous and Asad whole of the Tertiary P 
ontology, by W.M.Gabb. Price in cloth, $7.50 
OrntrnoLoey, The birds of California and the adjacent se and ent ypien 
will be de be described and illustrated ina work now in preparation, which 
brace two volumes. The illustrations of the first of these, "including the Sanet 
Tas age 1, comprising a Tabi abular Statement of the Quartz Min 
apy between the Merced and Stanislaus Rivers, in 1865, by A. sen 
ice 50 cents, 
