14 dons. — 15 juin-9 nov. 1874. 
New-Haven. The American Journal of Science and Arts, 3 e série, 
t. YII (CYÏI), n 0 42 ; 1874. 
Eug. W. Hilgard. — On sonie points in Mallet’s theory of Vulcanicitv, 535. 
L. Lesquereux. — On the âge of the Lignitic formations of the Rocky Mountains, 
546. 
C. H. Hitchcock. — On Helderberg Rocks in New-Hampshire, 557. 
0. Lœw. — On Wheelerite, a new fossil resin, 571. 
W. M. Fontaine. — The Great conglomerate on New river, West Virginia, 573. 
G. W. Hâves. — On a Felspar from Ramie in Norway, 579. 
F. B. Meek. — Notes on some of the Fossils figured in the recently-issued fifth 
volume of the Illinois state Geological report, 580. 
— Id., 3« série, t. VIII (CVI1I), nos 43 à 46 ; 1874. 
B. Silliman. — Mineralogical notes; Tellurium Ores of Colorado, 25. 
R. Irving. — On the Age of the Copper-bearing Rocks of Lake superior, and on 
the Westward continuation oftbe Lake Superior Synclinal, 46. 
E. B. Andrews. — On the parallelism of Coal-seams, 56. 
J. S. New-berry. — On the so-called Land plants from the Lower Silurian of Ohio, 
110. 
R. Mallet. — On the mechanism of Stromboly, 200. 
Philadelphie. Academy of Naturai Sciences of —. Proceedings of 
the—, 1873. 
E. Goldsmith. — Trautwineite, a new minerai, 9; — Analysis of Chromite from 
Monterey Co., California,. 365; — Stibiaferrite, a new minerai from Santa Clara Co., 
California, 366. 
E. D. Cope. — Toxochelys latiremis , 10; — On Eobasileus, Cope, 10; — On Eoba- 
siliidæ and Bathmodontidæ, 102; — On a skull of Sus scropha , 207 ; — On a Anourous 
Batrachian from the Eocene of Wvoming, 207 ; — On types of Molar teeth, 371 ; — 
Remarks on Fishes from the Coal-Measures at Linton, Ohio, 417 ; — On Fossils from 
the Miocene formations of Colorado, etc., 419. 
G. A. Kosnig. — On a boiler incrustation from New-Jersey, 13. 
J. Leidy. — Notice of fossil Vertebrates from the Miocene of Virginia, 15 ; — Notice 
of remains of Fishes in the Bridger tertiary formations of Wyoming, 97 ; — Remarks 
on the occurence of an extinct Hog in America, 207 ; — On Iron Pyrites in Coal, 257 ; 
— On Dufreynile, 257 ; — Remarks on extinct Mammais from California, 259; — Re¬ 
marks on fossil Eléphant teeth, 416. 
— American philosophical Society held at —, for promoting useful 
Knowledge. Proceedings of the —, t. XIII, n os 90 et 91 ; 1873. 
J. P. Lesley. — The Iron Ores of the South Mountain in Pennsylvania, 3; — The 
Outcrop Belt of the East Kentucky Coal field, 270; - A study of the structure and 
érosion ofBrush Mountain, 503. 
E. D. Cope. — On the new Perissodactyles from the Bridger Eocene, 35; — On the 
Short-footed Ungulata of the Eocene of Wyoming, 38; — On the flatclawed Carnivora 
of the Eocene of Wyoming, 198 ; — On the Osteology of the extinct tapiroid Hyrachyus, 
212 ; — On the gigantic Mammais of the American Eocene, 255. 
F. A. Genth. — Corundum, its alterations and associated minerais, 361. 
-Transactions of the —. 2 e série, t. XY, l re part. ; 1873. 
