dons. — 6 nov. 1876-8 janvier 1877. 29 
T. St. Hunt. — The Decaved Gneiss of Hoosac Mountain, 106; — Pr. J. D. Dana on 
the Alteration of Rocks, 108. 
S. H. Scudder. —On Fossil Insects from Cape Breton, 113; —Post-Pliocene Fos- 
sils froni Sankoty Head, Nantucket, 132. 
N. S. Shaler. — Propositions concerning the Motion of Continental Glaciers, 126; 
— Notes on the Cause and Geological Value of Variation in Rainfall, 176. 
W. Denton. — On an Asphalt bed near Los Angelos, Cal., and contained Fossils, 
185. 
Hitchcock. — Remarks on the Cambrian and Cambro-Silurian Rocks of Western 
Vermont, 191. 
Ch. Stodder. — À contribution to Microgeology, 206. 
Th. T. Bouvé. — On the Origin of Porphyry, 217. 
Hyatt. — Remarks on the Porphyries of Marblehead, 220. 
L. S. Burbank. — On the Conglomerate of Harvard, Mass., 224. 
New-Haven. American Journal of Science and Arts (The), 3 e sér., 
t. XII, n os 71 et 72; 1876. 
O. C. Marsh. — Notice of new Tertiary Mammals, V, 401 ; — Principal Charactcrs 
of American Pterodactyls, 479. 
J. W. Powell. — Types of Orographie Structure, 414. 
B. S. Burton. — Notice of a Meteorite, from Madison Co., N. C., 439. 
J. W. Dawson. — On a recent discovery of Carboniferous Batracians in Nova Sco- 
tia, 440. 
E. S. Dana. — Mineralogical Notes, IV : On the association of crvstals of Quartz 
and Calcite in parallel position, as observed on a specimen from the Yellowstone 
Park, 448. 
Philadelphie. Academy of Natural Sciences of —. Proceedings of 
the —, 1875. 
E. D. Cope. — On the Transition beds of the Saskatchewan District, 9; — The 
Extinct Batrachia of Ohio, 16; — On Greensand Vertebrata, 19 ; — The Feet of Bath- 
modon, 73 ; — On fossil Lemurs and Dogs, 255 ; — On the Antelope-Deer of the Santa 
Fe Maris, 257 ; — On some new fossil Ungulata, 258 ; — The Phylogeny of the Camels, 
261; — The Geology of New Mexico, 263, 269; — On an Extinct Vulturine Bird, 271 ; 
— On the Cretaceous Beds of the Galisteo, 359; — On fossil remains of Reptilia and 
Fishes from Illinois, 404 ; — On the supposed Carnivora of the Eocene of the Rocky 
Mountains, 444. 
P. Frazer. — Mineralogical notes, 10; — Sections of Palæozoic Rocks, 16; — On 
Thin Sections of the Traps of the Mesozoic basin, 72; — Notes on the Character of 
the Lower Silurian Slate at their Outcrops, 76; — On the Trias of York County, Pa.. 
123; — On the Structure of the York County Valley Limestone, and on Micro-pho- 
tography of minerais, 128; — On the Mesozoic Red Sandstone of the Atlantic States, 
440 ; — On Heat and Chemical Action, 444. 
Leidy. — Remarks on a Coal Fossil, 120; — Remarks on Eléphant remains, 121. 
Ch. A. Young.— The occurence of Celestine in Blair county, Pa., 127. 
T. A. Conrad. — Descriptions of a new fossil shell from Peru, 139; — Notes on 
the genus Catillus, Brongn.. 466. 
J. Willcox. — On Samarskite, 263; — On Minerai Localities in North Carolina, 467= 
J. L. Leconte. — The Geology of New Mexico, 267. 
B. Waterhouse Hawkins. — Pelvis of Hadrosaurus. 329. 
