128 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Low, Alfred Peter — Continued. 
1624. Report on the Chibougamau mining region in the northern part of 
the Province of Quebec. — Canada, Geol. Survey, 1906. 61 pp. and map. Ab- 
stract: Quebec, Dept. of Colonization, Mines, and Fisheries. Mining Operations 
for 1905. pp. 24-36. 1906. 
Gives a general description of the region, an account of the geology, with detailed de- 
scription of the rock exposures, and of the mineral deposits. 
1625. Summary report of the Geological Survey Department of Canada for 
the calendar year 1906. Ottawa, 1906. 296 pp. 
Gives an outline of the condition and work of the survey. Includes short reports by 
various members of the staff. 
Lucas, Frederic A. 
1626. The elephants of the Pleistocene. — Maryland Geol. Survey, Pliocene 
and Pleistocene, pp. 149-152, 2 pis., 1906. 
1627. Systematic paleontology of the Pleistocene deposits of Maryland : Mam- 
malia. — Maryland Geo]. Survey. Pliocene and Pleistocene, pp. 157-169. 7 pis., 
1906. 
Ludlow, Edwin. 
1628. Les gisements carboniferes de Coahuila [Mexico J. — X*' Congr. geol. 
intern., Guide des Excursions. Mexico, no. XXVIII. 17 pp., 1 pi., Iy06. 
Describes the occurrence and character of coal deposits. 
Lull, Richard Swan. 
1629. A new name for the dinosaurian genus Geratops. — Am. Jour. Sci.. 
4th ser.. vol. 21. p. 144, February. 1906. 
Proposes the name Proceratops for Ccratops, preoccupied by Rafinesque. 
1630. Volant adaptation in vertebrates. — Am. Naturalist, vol. 40, pp. 527- 
566, 14 rig's.. August, 1906. 
Discusses the subject of flight in the various classes of fossil and living vertebrates, 
and the modifications of structure required thereby. 
1631. Phylogeny, taxonomy, distribution, habits, and environment of tbe 
Ceratopsia.— U. S. Geol. Survey, Mon., vol. 49, pp. 159-198, 1907. 
1632. The evolution of the horse family as illustrated in the Yale collec- 
tions.— Am. Jour. Sci., 4th ser., vol. 2.",. pp. 161-182, 16 figs., March, 1907; Yale 
Univ., Peabody Mus. Xat. Hist, Guide no 1, 22 pp., 16 figs., 1907. 
The Ceratopsia. — See Hatcher and others, no. 1093. 
Luther, D. Dana. 
1633. Geologic map of the Buffalo quadrangle [New York]. — Xew York 
State Mus., Bull. 99, 29 pp., geol. map (in pocket). 1906. 
1634. Geology of the Perm Yan-Hammondsport quadrangles. — Xew York 
State Mus., Bull. 101. pp. 37-5S, geol. map, 1906. 
Describes the distribution, character, thickness, and fossil contents of the Devonian 
formations of this area. 
Geology of the Watkins and Elmira quadrangles. — See Clarke and Luther. 
Geologic map of the Tully quadrangle. — See Clarke and Luther. 
Lyman, R. H. 
1635. Coal mining at Holden. W. Va.— Eng. and Min. Jour., vol. 82, pp. 1120- 
1122, 1170-1172, 11 figs.. 1906. 
Includes notes on the occurrence and character of the coals. 
McAdie, Alexander G. 
1636. Catalogue of earthquakes on the Pacific coast, 1897-1906. — Smith 
sonian Misc. ("oil., vol. 49, 64 pp., 1907. 
