DONS. — AVRIL, MAI ET JUIN 190 45 
— Cambridge. B. Mus. of Comparative Zoül. at Harvard 
Coll., XLIT (VI, 6); XLVI, 4-7; XLVIE, 1905. 
XLI1:3. W.Goczprawair The Sand Plains of Glacial Lake Sudbury, 261-307. 
— Mem. Mus. of Comparative Zoül. at Harvard Coll., XXVT, 
5; XXXIL, 1905. 
— Chicago. The J. of Geol., XII, 2-4, 1905. 
2 : C. R. van Hise. Report ofthe special Committee on the Lake Superior 
Region, with introductory note, 89-104. — R. A. Dazy. The Accordance of 
Summit Levels among Alpine Mountains, 105-125. — E. C. CasE. The Osteo- 
logy of the Diadectidæ and their relations to the Chelydosauria, 126-159. — 
R. S. Tarr. Some Instances of Moderate Glacial Erosion, 160-173. — 3 : N. H. 
Darron. The Zuñi Salt Lake, 183-193. — D. W. Jouxson. The Tertiary 
History of the Tennesee River, 194-231. — B. Snimek. Additional note on 
Helicina occulta, 232-237. — R. T. CunamBeruw. The Glacial Features of the 
St-Croix Dalles Region, 238-256. — Stuart WELLer. À Fossil Starfish from 
the Cretaceous of Wyoming, 259-258. — O. W. Wirrcox. The So-Called 
Alkali Spots of the Younger Drift-sheets, 259-263. — G. C. Marson. Peridotite 
dikes near Ithaca, N. Y., 264-2795. — W. W. Arwoop. Glaciation of San 
Francisco mountain, Arizona, 276-299. — 4 : L. G. Wesr@are. The Twin 
Lakes glaciated Area, Colorado, 285-312. — H.F. Rein. The variations of 
Glaciers, 1x, 313-318. — C. H. Suvyru Jr. The Abstraction of Oxygen from 
the Atmosphere by Iron, 319-323. — S. WezLer. The Fauna of the Cliffwood 
(N. J.) Clays, 324-337. — S. W. Wiczisron. The Hallopus, Baptanodon, and 
Atlantosaurus Beds of Marsh, 338-350. — F. W. SarpEsow. À peculiar case 
of glacial Erosion, 351-357. — W. T. Lee. Note on the Glacier of Mount Lyell, 
California, 358-362. — \V.H. Hopzs. Examples of joint-controlled Drainage 
from Wisconsin and New-York, 363-374. 
— Columbus. 2. Geol. Surv. of Ohio, IV, 3, 1904. 
— Denver. P. Colorado Sc. Soc., VII, pp. 341-346; VILT, 
pp: 1-54, 1905. 
— Lansing. Ann. rep. Michigan. Ac. of Se., 1903. 
I. C. RussezL. The Topographie Survey of Michigan, 149-165. — A. C. LAN. 
Historical Review of the Geology of Michigan, 184-195. 
— Minneapolis. The Am. Geol., XXXV, 1-6, 1905. 
1 : G. FE. Becker. Present Problems of Geophysics,4-22.— J. F. WHiTEAVES. 
Notes on the Apical end of the Siphuncle in some Canadian Enoceratidae, 
with Descriptions of Two Supposed New Species of Nanno, 23-30. — O. P. 
Hay. he Progress of Vertrebate Paleontology at the American Museum of 
Natural History, 31-34 — Ira A. Wicrrams. The comparative Accuracy of 
the Methods for Determining the Percentages of the Several Components of 
an Igneous Rock, 34-46. — W. C. MorGan. The Origin of Bitumen, 46-50. — 
E.R. CumiGs. Development and Morphology of Fenestella, 50-51. N. L. 
Fuzcer. Pleistocene History of Fishers Island, N. Y., 51. — R.S. Tarr. 
Some Drainage Features of Southern Central New-York, 52. — Bailey Waits. 
Mountain Growth and Mountain Structure, 52-53. — 2 : A. C. Lane. The 
Coarseness of Igneous Rocks and its Meaning, 65-72. — B. K. Emerson. Notes 
on Some Rocks and Minerals from North Greenland and Frobisher Bay, 
94-104. — J. P. Rowe. Montana Gypsum Deposits, 104-113. — Rufus BAGG. 
Foraminifera Collected from the Blufïfs at St-Barbara, 123-124. — 3 : Ch. E. 
