Milan. Reale Istituto Lombardo di Scienze e'Lettere. Rendiconti. Vol. iii. fasc. 16-20 ; Vol. iv. fasc. 1-20 ; Vol. v. fasc. 1-7.
—. —. Memorie. Vol. xii. Fasc. 2-4.
Monthly Microscopical Journal. July, August, and September 1872.
A. M. Edwards. — Note on the Siliceous Incrustations from the Geysers of the Yellowstone River, 104.
Montreal. The Canadian Naturalist. New Series. Vol. vi. No. 4. 1872. J. W. Dawson. — The Post-Pliocene Geology of Canada, 369.
T. Sterry Hunt. — History of the names Cambrian and Silurian in Geology, 417.
E. Billings. — Additional Notes on the Taconic Controversy, 460.
—. On some Fossils from the Primordial Rocks of Newfoundland, 465.
J. D. Dana.— What is True Taconic, 479.
Munich. Sitzungsberichte der mathematisch-physikalischen Classe der k.-b. Akademie der Wissenschaft zu Munchen. Heft iii. 1871.
—. Abhandlungen. Band xi. Abth. 1. 1871.
Nature (Journal). Vol. vi. Nos. 138-152.
W. Gifford Palgrave. — Mineral Spring of Shana near Trebizonde, 163.
Agassiz's South-American Expedition, 216, 229, 270.
H. Norton. — Volcanoes of Central France, 243.
C. U. Shepard. — On a Meteoric Iron lately found in El Dorado County, California.
British Association, Section C. Geology, 319, 361.
New Haven. American Journal of Science and Arts. Vol. iii. No. 18. June 1872.
S. W. Ford. — Description of some new species of Primordial Fossils, 419.
F. B. Meek. — Description of New Species of Fossils from the Cincinnati Group of Ohio, 423.
T. B. Brooks and R. Pumpelly. — On the Age of the Copper-bearng Rocks of Lake Superior, 428.
C. U. Shepard, Sen. — On a Meteoric Iron lately found in El Dorado County, California, 438.
O. C. Marsh. — On the Structure of the Skull and Limbs in Mosasauroid Reptiles, with descriptions of new Genera and Species, 448.
Vol. iv. Nos. 19-21. July, August, and September 1872.
C. G. Rockwood, Jun. — Notices of recent Earthquakes, 1.
E. S. Dana. — On the Datolite from Bergen Hill, New Jersey, 16.
T. B. Brooks. — On certain Lower Silurian rocks in St. Lawrence County, N. Y., 22.
J. D. Dana. — On the Oceanic Coral-island Subsidence, 31.
C. F. Hartt. — On the Tertiary Basin of the Maranon, 53.
F. H. Bradley. — -Description of two new Land Snails from the Coal- measures, 87.
