174 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Ramsey, A. C. 
On the occurrence of angular, subangular, polished, and striated fragments 
and boulders in the Permian breccia of Shropshire, Worcestershire, &c.; 
and on the probable existence of glaciers and icebergs in the Permian 
epoch. Quart. journ. Geol. soc. London, 1855, 11, p. 185-205. 
Russell, I. C. 
Glaciers of North America. Boston. 1901. 
Salisbury, R. D. 
Agencies which transport materials on the earth’s surface. Journ. geol., 
1895, 3, p. 70-97. 
See Chamberlin, T. C. and Salisbury, R. D. 
Sargent, R. H. 
See Willis, Bailey, Blackwelder, Eliot, and Sargent, R. H. 
Sayles, R. W., and LaForge, Laurence. 
The glacial origin of the Roxbury conglomerate. Science, 1910, new ser., 
32, p. 723-724. 
Shaler, N.S. 
[Note on the geological section at Chestnut Hill Reservoir, Mass.]. Proc. 
Bost. soc. nat. hist., 1869, 13, p. 172-177. 
Note on the geological relations of Boston and Narragansett Bays. Proc. 
Bost. soc. nat. hist., 1875, 17, p. 488-490. 
On the geology of the Cambrian district of Bristol County, Massachusetts. 
Bull. M. C. Z., 1888, 16, p. 13-26, map. 
Shaler, N. S8., Woodworth, J. B., and Foerste, A. F. 
Geology of ‘the Narragansett Basi. U. S. G. S. Monograph, 1899, 33. 
Stone, G. H. 
On the scratched and facetted stones of the Salt Range, India. Geol. mag., 
1889, Dec. 3, 6, p. 415-425. 
The glacial gravels of Maine and their associated deposits. U.S. G. 8. 
Monograph, 1899, 34. 
Taff, Joseph A. 
Ice-borne boulder deposits in mid-Carboniferous marine shells. Bull. 
Geol. soc. Amer., 1910, 20, p. 701-702. 
Waagen, Wilhelm. 
Mittheilung eines Briefes von Herrn A. Derby iiber Spuren einer carbonen 
Eiszeit in Siidamerika. Neues jahrb., 1888, 2, p. 172-176. 
‘White, C.D. 
Carboniferous glaciation in the southern and eastern hemispheres, with 
some notes on the Glossopteris-flora. Amer. geol., 1889, 3, p. 299-330. 
‘Wilkinson, C. S. 
Note on the occurrence of remarkable boulders in the Hawkesbury rocks. 
Journ. and proc. Royal soc. N. 8. W., 1880, 13, p. 105-108. 
‘Williams, G. H. 
The distribution of ancient volcanic rocks along the eastern border of North 
America. Journ. geol., 1894, 2, p. 1-31. 
