dons. — 6 janvier-3 mars 1873. 
29 
-Proceedings of the—, 1.1, feuilles 1 à 15; 1870-71. 
J. S. Newberry. — On the earliest Traces of Man found in North America, 2 ; 
The ancient Lakes of Western America, their Deposits and Drainage, 25. 
A. M. Edwards. — Note on Itacolumite, 33; — On some Facts connected with the 
occurence of Deposits of fresh-water Diatomaceæ commonly known as infusorial 
Earths, 47. 
Ch. Frœbel. — Notes of some Observations made in Dakota, during two Expédi¬ 
tions, ... in the years 1864 and 1865, 64. 
J. S. Newberry. —The geological position of the Remains of Eléphant and Mastodon 
in North America, 77. 
C. F. Hartt. — On the Geology of Brazil, 90. 
A. M. Edwards. — Microscopical examination of two minerais, 96. 
H. Wurtz. — Progress of an Investigation of the Structure and Lithology of the 
Hudson River Palisades, 99. 
A. M. Edwards.— On the formation of Deposits of fresh-water Diatomaceæ, 109. 
B. Waterhouse Hawkins. — On a specimen of Ichthyosaurus, 202. 
Grande-Bretagne . Londres. The Athenæum, n os 2356 à 2366 ; 
1872-73. 
— Royal Society of — .Proceedings of the —, t. XX, n os 130 à 137. 
Owen. — On the fossil Mammals of Australia. YT. Genus Pliascolomys , Geoffr., 66; 
— "VII. Genus Phascolomys ; species exceeding the existing ones in size, 306. 
Sharpey. — Notice of further Researches on the fossil Plants of the Coal-measu- 
res, 95. 
W. C. Williamson. — On the organization of the fossil Plants of the Coal-measures. 
— III. Lycopodiaceœ , 199. 
R. Mallet. — Volcanic energy ; an attempt to develope its true origin and cosmical 
relations, 438. 
W. Pengelly. — Report on the Exploration of Brixham Cave, 514. 
— -Philosophical Transactions of the—, t. CLXI, part. 2 ; 1871. 
A. Pratt. — On the Constitution of the solid crust of the Earth, 335. 
N. Story-Maskelyne. — On the Minerai constituents of Meteorites, 359. 
W. C. Williamson. — On the organization of the Plants of the Coal-Measures. — I. 
Calamites , 477. 
— Id., t. GLXII, part. I; 1872. 
M. Duncan. — On the Structure and Affinities of Guynia annulata , Dune., with Re¬ 
marks upon the Persistence of palœozoic Types of Madreporaria, 29. 
Owen.— On the fossils Mammals of Australia. V. Genus Nototherium , 41 ; — YI. 
Genus Phascolomys , Geoffr., 173. 
W. C. Williamson. — On the organization of the fossils Plants of the Coal-measures. 
II. Lycopodiaceœ, Lepidodendra and Sigillariœ , 197. 
Italie. Florence. R. Comitato geologico dltalia. Rollettino, 1872, 
n os 11 et 12. 
A. d’Achiardi. — Paragone délia Montagnola Senese con gli altri monti délia Catena 
metallifera délia Toscana, 315 ; — Sulla probabile esistenza di avanzi di antichissime 
industrie umane nella cosi délia Terra gialla di Siena, 325. 
T. Taramelli.— Osservazioni geologiche fatte nel Carso, nel territorio di Monfalcone 
ed aile foci dell’Isonzo, 326. 
Suisse. Lausanne. Société Vaudoise des Sciences naturelles. Bulletin 
delà —, 2 e série, t. XI, n° 67 ; 1873. 
Ph. de la Harpe. — Notiee géologique, 319. 
