RECENT PUBLICATIONS 477 
Basin. Prepared under the direction of M. D. Leighton. [Washington, 
1gIiI.] 
—LamseE, L. M. Bibliography of Canadian Zodlogy for 1910 (Exclusive of 
Entomology). [From the Transactions of the Royal Society of Canada, 
Third Series, 1911, Vol. V, Sec. IV. Ottawa, 1912.] 
Presidential Address—The Past Vertebrate Life of Canada. [From 
the Transactions of the Royal Society of Canada, Third Series, ro11, Vol. 
V, Sec. IV. Ottawa, 1912.] 
—LanE, ALFRED C. The Grain of the Igneous Rocks. Reprint of Chapter 
IV of the Keweenaw Series of Michigan, Publication 6, Geographical Series 
4, Vol. I. [Published as a part of the Annual Report of the Board of 
Geological and Biological Survey for 1909. Lansing, 1911.] 
Mine Waters. Reprint of pp. 774-79 of the Keweenaw Series of 
Michigan. Publication 6, Geological Series 4, Vol. I. [Published as a 
part of the Annual Report of the Board of Geological and Biological 
Survey for 1909. Lansing, 1o911.] 
Temperature of the Copper Mines. Reprint of Chapter VI of the 
Keweenaw Series of Michigan, Publication 6, Geological Series 4, Vol. I. 
[Published as a part of the Annual Report of the Board of Geological and 
Biological Survey for 1909. Lansing, 1o1t.] 
—Lawson, ANDREW C. The Recent Fault Scraps at Genoa, Nevada. 
[Reprinted from the Bulletin of the Seismological Society of America, Vol. 
II, No. 3. September, 1912.] 
—LeErE, G. W. The British Carboniferous Trepostomata. [Memoirs of the 
Geological Survey of Great Britain. Palaeontology, Vol. I, Part 3. 
London: T. Fisher Unwin, 1 Adelphi Terrace, May 12, 1912.] 
—LeITu, C. K., AND HARDER, E.C. Hematite Ores of Brazil and a Com- 
parison with Hematite Ores of Lake Superior. [Economic Geology 
Publishing Co. Reprinted from Economic Geology, Vol. VI, No. 7, 
October-November, 1o11.] 
—Leucus, K. Aus den wissenschaftlichen Ergebnissen der Merzbacherschen 
Tian-Schan Expedition. Geologische Untersuchungen im Chalyktau, 
Temurlyktau, Dsungarischen Alatau (Tian-Schan). [Abhandlungen der 
K6niglich Dayerischen Akademie der Wissenschaften Mathematisch- 
physikalische Klasse, XXV. Band, 8. Abhandlung. Miinchen, 1912.] 
—Locan, W. N. The Structural Materials of Mississippi. [Mississippi 
Geological Survey Bulletin 9. Jackson, 1911.] 
—Lovucuitn, G. F. Contribution to the Geology of the Boston and Norfolk 
Basins, Massachusetts. I. The Structural Relations between the Quincy 
Granite and the Adjacent Sedimentary Formations. [American Journal 
of Science, Vol. XXXII, July, ro11.] 
—Lowe, E. N. Our Waste Lands. A Preliminary Study of Erosion in 
Mississippi. With an Appended Address on Mississippi’s Agricultural 
