RECENT PUBEITCATION'S: Oe Se) 
—Bruce, F.R.S.E., Wm. S. The Area of Unknown Antarctic Regions Com- 
pared with Australia, Unknown Arctic Regions, and British Isles. [Re- 
printed from the Scottish Geographical Magazine, July, 1906.] 
—Bucxincuam, E. Studies on the Movement of Soil Moisture. [U. S. 
Department of Agriculture, Bureau of Soils—Bulletin No. 38. Washington, 
February 14, 1907.] 
—Bucktey, E. R. Biennial Report of the State Geologist transmitted by the 
Board of Managers of the Board of Geology and Mines to the Forty-fourth 
General Assembly. [Missouri Bureau of Geology and Mines. Jefferson 
City, 1906.] 
—Bucktey, E.R., and BurHterR, H. A. The Geology of the Granby Area. 
[ Missouri Bateau of Geology and Mines, Vol. IV, Second Series. Jefferson 
City, Mo.] 
—CiLarK, W. B. What Should Appear in the Report of a State Geologist. 
[Reprinted from Economic Geology, Vol. I, No. 5, March-April, 1906.] 
—CiarkE, F. W. The Statistical Method in Chemical Geology. [Reprinted 
from Proceedings of the American Philosophical Society. Vol. XLV. 1906. 
—Clays, Investigations Relating to, by the U. S. Geological Survey in 1905. 
[Extract from Bulletin No. 285; Contributions to Economic Geology, 1905. 
Washington, 1906.] 
—CoLeMAN, A. P. Interglacial Periods in Canada. [Imprenta y Fototipia 
de la Secretaria de Fomento. Mexico, 1906.] 
—Conpon, T. A New Fossil Pinniped from the Miocene of the Oregon Coast. 
[University of Oregon Bulletin Supplement to Vol. III, No. 3, Department 
of Geology. Eugene, May, 1906.] 
—CookeE, W. W. Distribution and Migration of North American Ducks, 
’ Geese, and Swans. [U. S. Department of Agriculture, Biological Survey— 
Bulletin No. 26. Washington, 1906.] 
—Crooxk, A. R. The Making of the Grand Canon of the Asolo [Reprinted 
from The Popular Science Monthly, November, 1906.] 
—Datt, W.H. Biographical Memoir of Charles Emerson Beecher, 1856-1904. 
{Read before the National Academy of Sciences, November 16, 1904. 
Washington, 1907.] 
—Daty, R. A. Abyssal Igneous Injection as a Causal Condition and as an 
Effect of Mountain-Building. [From The American Journal of Science, 
Vol. XXII, September, 1906.] 
The Differentiation of a Secondary Magma through Gravitative Adjust- 
ment. [Sonder-Abdruck aus der Festschrift zum siebzigsten Geburtstage 
von Harry Rosenbusch gewidm. y. seinen Schiilern. Stuttgart, 1906.] 
The Limeless Ocean of Pre-Cambrian Time. [From The American 
Journal of Science, Vol. XXIII, February, 1907.] 
The Okanagan Composite Batholith of the Cascade Mountain System. 
[Bulletin of the Geological Society of America, Vol. XVII, pp. 329-76. 
Rochester, July, 1906.] 
