282 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
BIBLIOGRAPHY. 
Carpenter, F. R. 
Preliminary report of the Dakota School of Mines, upon the geology, 
mineral resources and mines of the Black Hills of Dakota. Rapid City, 
1888. 
Crosby, W. O. 
Geology of the Black Hills of Dakota. Proc. Bost. Soc. Nat. Hist., 1888, 
vol. 23, p. 488-517. 
Darton, N. H. 
a. Preliminary description of the geology and water resources of the 
southern half of the Black Hills and adjoining regions in South Dakota 
and Wyoming. U. S. G. S. 21st Ann. Rept. 1901, pt. 4, p. 489-599, pl. 
58-112. 
b. The Sundance quadrangle. Geologie atlas U. S. U. S. G. S. Folio 
127, 1905, 
c. The Aladdin quadrangle. Geologie atlas U.S. U. S. G. S. Folio 128, 
1905. 
Emmons, $. F. 
See Irving, J. D. b. 
Hovey, E. O. 
Erosion forms in the Harney Peak district, S. D. Bull. Geol. Soc. Amer., 
vol. 11, p. 581-582, pls. 53-56, 1900. 
Howe, E. 
See Jaggar, T. A. Jr. 
Irving, J. D. 
a. A contribution to the geology of the northern Black Hills. Ann. N. Y. 
Acad. Sci., 1899, vol. 12, p. 187-340. 
b. Economic resources of the northern Black Hills. With contributions 
by $. F. Emmons and T. A. Jaggar, Jr. U. S. G. S. Prof. Paper, 26, 1904. 
Jaggar, T. A. Jr. 
The laccoliths of the Black Hills. With a chapter on experiments illus- 
trating intrusion and erosion by Ernest Howe. U.S. G. S., 21st Ann. 
Rept., 1901, pt. 3, p. 163-308. Pl. 18-47. 
See Irving J.D. b. 
Jenney, W.P. 
See Newton H. and Jenney W. P. 
Newton, H., and Jenney, W. P. 
Report on the geology and resources of the Black Hills of Dakota. 
Washington, 1880. 
Van Hise, C.R. 
The pre-Cambrian rocks of the Black Hills. Bull. Geol. Soc. Amer, 1890, 
vol. 1, p. 203-244, pl. 4-5. 
