BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1006-1907. 87 
Gregory, Herbert Ernest, and Robinson, Henry Ilollister. 
1038. Preliminary geological map of Connecticut. — Connecticut Slate Geol. 
and Nat. Hist. Survey, Bull. no. 7, 39 pp., and map in pocket, 1907. 
The explanatory text accompanying the map gives a brief outline of the geology of 
Connecticut, a sketch of the history of geological work in Connecticut, and a Nummary 
of the geologic formations of the State. 
Gregory, J. W. 
1039. Climatic variations, their extent and causes. — Oongr. geol. intern., 
C. R. 10' sess.. Mexico, 1906, pp. 407-42G, 1907. 
Gregory, William K. 
1040. The orders of teleostomous fishes. A preliminary review of the 
broader features of their evolution and taxonomy. — New York Acad. Sci., 
Annals, vol. 17, pt. 2, pp. 437-508, 2 pis., September, 1907. 
Prorosmarus alleni, a new genus and species of walrus from the upper Mio- 
cene of Yorktown, Virginia. — See Berry and Gregory, no. 227. 
Griffith, William. 
1041. Kinds and occurrence of anthracite coal. — Min. Mag., vol. 13, no. 3, 
pp. 214-221, March, 1906. 
1042. The Matanuska coal field, Alaska. — Mines and Minerals, vol. 26, no. 10, 
pp. 433^37, 5 figs.. May, 1906. 
Describes the geologic structure, the occurrence and character of the coal seams, and 
the quality and composition of the coals. 
Griggs, Robert E. 
1043. The Buffalo River [Minnesota] : an interesting meandering stream. — 
Am. Geog. Soc, Bull., vol. 38, no. 3, pp. 168-177, 2 figs., March, 1906. 
Discusses factors controlling the meandering of streams. 
Grimsley, G. P. 
1044. Clays, limestones, and cements. — West Virginia Geol. Survey, vol. 3, 
565 pp., 44 pis., 50 figs. [1906]. 
Describes the composition, occurrence, properties, and utilization of clays, limestones, 
and cement materials in West Virginia. Includes an outline of the geology of the State. 
1045. Portland cement resources of West Virginia. — Eng. and Min. Jour., 
vol. 83, pp. 998-999, May 25, 1907. 
1046. [Report on the geology of the Panhandle counties of West Virginia.] — 
West Virginia Geol. Survey, County Reports and Maps: Ohio, Brooke, and Han- 
cock counties, 378 pp., 16 pis., 37 figs., and 8 maps in atlas [1907]. 
Griswold, W. T. 
1047. The coals of the Steubenville quadrangle in West Virginia. — West Vir- 
ginia Geol. Survey, County Reports and Maps: Ohio. Brooke, and Hancock 
counties, pp. 224-237, 1 pi. [19071. 
The production in the United States in 1905 of natural gas and of petro- 
leum. — See no. 2418. 
The production in the United States in 1906 of petroleum.— See no. 2419. 
Griswold, W. T.. and Munn, M. J. 
1048. Geology of the oil and gas fields in Steubenville, Burgettstown, and 
Claysville quadrangles, Ohio, West Virginia, and Pennsylvania. — IT. S. Geol. 
Survey, Bull. no. 318, 196 pp., 13 pis., 1907. 
Grout, Frank F. 
1049. The composition of coals. Keen. Geology, vol. 2. no. :'., pp. 225 241, 
4 figs., April-May. 1907. 
Gives a graphic mode of representing. Includes a classification. 
