14 DONS. — 20 JUIN-7 NOVEMBRE 1881. 
États-Unis. New-York. The american monthly microscopical 
journal, t. II, N° 9, sept. 1881. 
Indianapolis. Second annual report of the départaient of statis- 
tics and geology, for 1880. 
Newhaven. The american journal of science, 3^ série, t. XXIÎ, 
127-130, juil-oct. 188L 
Marsh. — Restoralioii of Dinoceras mirabile, 31. 
Broadhead, — Garboniferous Rocks of Southeast Kansas, 55. 
Higard. — Later tertiary of the gulf of Mexico, 58. 
Dana. — Geological relations of the Limestone belts of Westcbester County, 
New-York, 103, 3i3, 3v>7. 
Whitfield. — Nature of Dictyophyton, 132. 
Ford. — Embryonic forms of Trilobites from the primordial rocks of Troy, 250. 
Princeton. Muséum of geology and archœology of the collège of 
New Jersey. Contributions from the — , t. I, N° 1, 1881. 
Osborn. — A memoir upon Loxolopliodon and Uintatherium. 
Salem, Peabody academy of science. Memoirs of the — , t. I, N°^ 5 
et 6. 
Washington. Smithsonian institution. Annual report of the board 
of régents of the — for the year 1879. 
Grande-Bretagne. Londres. The geological magazine, New 
séries, décade II, t. YIII, N°^ VII à XI, juil.-nov. 1881. 
Davidson. — On the gênera Merista and Daya, 289. 
Scudder. — Two new British carboniferous insects, 293. 
Seeley. — On Vogt's wiew of the Archœopteryx, 300. — Différences between the 
l.ondon and Berlin Archœopteryx, 454. 
Howorth. — Sudden extinction of the Mammoth, 309. — The cause of the Mam- 
moth's extinction, 403. 
Newton. — The vertebrata of theforest bei séries of the east of England, 315. 
Lapworth. ■— Corrélation of the lower Paleeozoic rocks of Britain and Scandi- 
navia, 317. 
R. Jones. — Notes on paleeozoic Entomostraca, 337. 
Callaway. — On the archœan rocks, 348. — How to work in the archaean rocks, 
420. — The metamorphic and associated rocks of Wexford, 494. 
Williams. -- The Migaceros in Ireland, 354. 
Peach and Horne. — The glaciation of the Shetlands, 364. 
Hudleston. — Gasteropoda from the Portland rocks of the vale of War-= 
dour, 385. 
Strahan. — The lower Keuper Sandstone of Cheshire, 396. — Discovery of Coal 
Measures under New red sandstone and on so-called Permian rocks, at Saint- 
Helens, Lancashire, 433. 
Champernowne. — The Ashburton limestone; its âge and relations, 410. — On 
the geological position of the Humalonotus beds, 487. 
Crosby. — Absence of joint-structure at great depths, 416. 
Kinahan. — Possible Laurentian rocks in Ireland, 427. 
AUport. — Notes on the Pitchstones of Arran, 438. 
