144 Mitceiorenes Bibliography. 
opment and conservation of our greatest national resource, oe 
eg oY power of our soil. 
6. Lithologie des ers de Pancien monde, par M. DELESSE. Wa 
ae pas par ML Brussr, Professeur de Mécanique a 
PEcole des Pronts et Chaussées, by AHAN, bene 
. 8. Corps of Tertiesch Revised weed D. H. Mahan, 
65 pp. 8vo, 1869. New Yor Eda Wiley & Son n.)—A co 
sa and thorough — on ‘the subject of ‘Hydraulic Matorkees 
8. Weisbach’s ual of Mechanics, vol. i, part u, 8vo. New 
York, (D. Van No as d).—The sec cond part of the first volume of 
Weisbach’s Mechanics, noticed in our last volume (p. 449), has just 
iene received, 
. A Practical Treatise on ee ney, adopted from the last 
Ge 
F.R.S., an Nst Réurie, Ph.D., M.E. In three a volumes, 
8vo, London yea ae & Co. ; ak New York, John Wiley & Son, 2 
cuts. 803, pp. 1870. We have no space at this time for a further 
notice. 
10. ‘Reliquiee Aquitanice ; - Messrs. Larter & Cur 
edited by Prof. Thomas Rupert Jones. “Part ix, of this beautifid 
work on the Archwology of Southern France, has been published. 
Lea on the Genus Unio. Index to Vol. xi and Re usage index to Vols. 1t0 - 
x1 of Observations on the Genus Unio, together with Description of new species s of 
the Family Unionide and description of new species of Melanidse, Paludine, Heli- 
cide, etc. Isaac Lea, LL.D., etc. 
Bulletin of the National Association of Wool Manufacturers. Oct., 1869. Boston. 
Address delivered on the pag gone Fas Anniversary of the birth of ange von 
Humboldt under per aes of the Boston Society of Natural History, by Louls 
Boston, 18 Oe 
= ie aaa by J. A. Allen. 112 pp. 8vo. Beton ee of the Mu- 
seum of © maparate Zociey © Sacyaed Sclingn, feanbeisigns: Mast No. 8. 1869. 
ALEXANDER VON HUMBOLDT, eine wissenchaftliche Biographie, by Dr. Carl Brubns, 
aided — various ‘Sevans of Gates, is soon to be issued in two large volumes by 
F. A. Brockhaus of Leipzig. 
OBITUARY. eons GRawam, author of the excellent “ Elements of Chemistry,” 
and since 1855 Maste r of the Mint, died Sept. 16th, in his 64th y 
AxeL Joacuim ErpMANN, Director of the Geological Sfirvay” of Sweden, and 
in as well as Geology, died at Stockholm on the Ist of Decem- 
t, and editor of the Journal fur prak- 
eet oe sd coe Men in co 
he 22nd o rin ereey ah onary 65 years. ‘The eg 
noted athe st fotame of hs Journal, (p18 2. 
Eat : 
ne EP Oe et ee 
Te ey See cee 
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