130 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
McConnell, R. G. — Continued. 
1650. Klondike district. — Canada, Geol. Survey, Suinm. Rept. for 1906, pp. 
20-21, 1906. 
Describes work upon the gold-bearing gravels of the Klondike district in Yukon Ter- 
ritory, Canada. 
1651. Recent mineral discoveries on Windy Arm of Tagish Lake [British 
Columbia].— British Columbia, Ann. Rept. Minister of Mines, 1905, pp. 01-08, 
1906. Mines and Minerals, vol. 27, no. 1, pp. 15-16, August, 1906. 
1652. Note on Windy Arm silver-bearing veins. — Canadian Min. Inst., vol. 9, 
pp. 49-53, 1906. 
Describes the local geology and the occurrence of silver ores. 
1653. Report on gold values in the Klondike high level gravels. — Canada, 
Geol. Survey, 1907. 34 pp., 3 pis., 2 figs., 1 map. 
1654. Rapport sur les teneurs en or des hauts-graviers du Klondike. — Canada, 
Ministere des Mines, Comm. geol., 1907. 38 pp., 3 pis., 2 figs., 1 map. 
This is a French edition of the preceding. 
McCormick, E. 
1655. Diente, Mexico. — Min. and Sci. Press, vol. 95, p. 648, November 23, 
1907. 
Gives a brief account of the local geology and (be occurrence and character of the 
lead-zinc ores. 
McCourt, W. E. 
1656. Fire tests of some New York building stones. — New York State Mus., 
Bull. 100, 38 pp., 26 pis., 1900. 
Includes petrographic descriptions of various building stones. 
1657. The fire-resisting qualities of some New Jersey building stones. — New 
Jersey Geol. Survey, Ann. Kept. State Geologist for 1906, pp. 19-76, 23 pis., 1907. 
A report on the peat deposits of northern New Jersey. — See Parmelee and 
McCourt, no. 1874. 
MacDonald, I). F. 
1658. Economic features of northern Idaho and northwestern Montana. — 
U. S. Geol. Survey, Bull. no. 285, pp. 41-52, 1906. 
Describes the general geology, the stratigraphy, and the geologic structure of the 
region, and various mining developments. 
Macdonald, J. A. 
1659. The occurrence and development of the cobalt-ore deposits [of northern 
Ontario].— Eng. Mag., vol. 31, no. 3, pp. 406-416, 5 figs., June. 1906. 
Macdougal, Daniel Trembly. 
1660. The desert basins of the Colorado delta. — Am. Geog. Soc, Bull., vol. 
39, no. 12, pp. 705-729, 11 figs., December, 1907. 
Describes the physiographic features of the region. 
1661. The delta of the Rio Colorado. — Am. Geog. Soc, Bull., vol. 38, no. 1, pp. 
1-16, 6 figs., January, 1900. New York Bot. Garden, Contr. no. 77. 1906. 
Includes data upon the physiographic character of the region. 
McGee, W J 
1662. Glaciation in the Sonoran province LAIexieoJ. — Science, new ser., 
vol. 24, pp. 177-178, August 10, 1906. 
Holds that the deposits ascribed by Merrill [see no. 1721 J to glacial action are of 
volcanic origin. 
1663. River sediment as a factor in applied geology. — Abstract: Science, new 
ser., vol. 25, p. 765, May 17, 1907. 
