BIBLIOGKAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 21 
Barbour, Erwin Hinckley — Continued. 
137. A workable bed of coal in Nebraska. — Science, new ser., vol. 24, pp. 
51-52, July 13, 1906. 
Notes the discovery of workable coal near Peru, Nebr., its character, and other oc- 
currences of coal in Nebraska. 
138. Notice of a new Miocene rhinoceros, Diceratherium arikarense. — Sci- 
ence, new ser., vol. 24, pp. 780-781, 2 figs., December 14, 1906. 
139. Report on the geological expedition of Hon. Charles H. Morrill. Season 
of 1906. — Science, new ser., vol. 25, pp. 73-74, January 11, 1907. 
140. Evidence of man in the loess of Nebraska. — Science, new ser., vol. 25, 
pp. 110-112, January IS, 1907. 
Announces the discovery of human remains in undisturbed loess, detailing the cir- 
cumstances and conditions of preservation. 
141. Prehistoric man in Nebraska. — Putnam's Monthly, pp. 413-415, 502-503, 
3 figs., January, 1907. 
Describes the finding of human remains in undisturbed loess deposits. 
Barbour, Erwin Hinckley, and Ward, Henry Baldwin. 
142. Preliminary report on the primitive man of Nebraska. — Nebraska Geol. 
Survey, vol. 2, pt. 5, pp. 317-327. 4 tigs., 1906. 
Barker, F. L. 
143. Structural geology at Leadville [Colorado]. — Mines and Minerals, vol. 
28, no. 5. pp. 220-222, 3 figs., December, 1907. 
Describes the geological relations and occurrence of the ore deposits. 
Barlow, Alfred Ernest. 
144. Report on some of the undeveloped zinc deposits of British Columbia. — 
Canada, Dept. of the Interior, Mines Branch, Report of the Commission to in- 
vestigate the zinc resources of British Columbia, pp. 273-293, 4 pis., 1906. 
Includes notes on the geology of the area examined. 
145. On the Quebec side of Lake Timiskaming. — Canada, Geol. Survey, 
Summ. Rept. for 1906, pp. 113-118, 1906. 
Gives an account of the geology of the region. 
146. On the nickel deposits of Webster, western North Carolina. — Canadian 
Min. Inst., Jour., vol. 9, pp. 303-316, 1 pi. (map), 1906. 
Describes the occurrence of the ores and their geological relations and origin. 
147. On the origin and relations of the nickel and copper deposits of Sud- 
bury, Ontario, Canada. — Econ. Geology, vol. 1, no. 5, pp. 454—466; no. 6, pp. 
545-553, 1906. 
Gives a historical resume of the literature, and describes the character of the nickel- 
bearing eruptive rock, and the composition and mode of occurrence of the ore bodies. 
Report of a special committee on the correlation of the pre-Cambrian rocks 
of the Adirondack Mountains, the "original Laurentian area" of Canada, and 
eastern Ontario. — See Adams and others, no. 13. 
Barrell, Joseph. 
148. Relative geological importance of continental, littoral, and marine 
sedimentation.— Jour. Geology, vol. 14. pp. 316 356, 430-457, 524 568, 10 flgs., 
1906. 
Discusses the conditions under which continental, littoral, and marine deposits are 
formed and the criteria by which they may be discriminated, and applies these consid- 
erations to geologic history, particularly of pre-Paleozoic and Paleozoic sedimentation. 
