BIBLIOGRAPHY OP THE DRIFTLESS AREA 
73 
McGee, W J, The Drainage System and the Distribution of the loess 
in Eastern Iowa: Bull, of the Philosophical Society of Washington, 
Yol. IV, pp. 93-97. 
Salisbury, R. D., Notes on the Driftless Area of Wisconsin: Trans. 
Wisconsin Acad. Sciences, Arts and Letters. 
Strong, Moses, Lead and Zinc Ores: Geology of Wisconsin, Vol. I, 
pp. 637-655. 
1884. 
Chamberlin, T. C., and Salisbury , R. D., Preliminary Paper on the 
Driftless Area of the Upper Mississippi Valley: U. S. Geol. Survey 
Sixth Ann. Rept., pp. 199-322. 
Salisbury , R. D., (On the Driftless Area), Descriptive America, 
Vol. 1. 
Squier, G. H., Depth of the Glacial Submergence on the Upper 
Mississippi: Science, Vol. IV, p. 160. 
Winohell, N. H., Final Rept. of the Geol. and Nat. Hist. Survey of 
Minnesota, Vol. 1, pp. 117-120, 213, 227-230, 245, 260-263, 275, 278, 311-313, 
317, 406. (See also other Minnesota County Reports on Winona, Wa- 
basha, Goodhue, Dakota and Washington Counties.) 
1885 
Salisbury, R. D., Trans. Wisconsin Acad. Sci., Vol, VI, p. 48. 
1886 
Irving, R. D., The Classification of the Early Cambrian and pre- 
Cambrian Formations: U. S. Geol. Survey Seventh Ann. Rept., pp. 
403-408. 
Chamberlin, T. C., U. S. Geol. Survey Seventh Ann. Rept., Plate 8 
(on soils), pp. 678-688. 
1888 
Folsom, W. H. C. (On Driftless Area Phenomena), Fifty Years in 
the Northwest, pp. 383-384, Saint Paul. 
Winchell, N. H., Changes of Level in Lake Pepin: Geology of Minn- 
esota, Vol. 2, pp. 2-6, 14-15, 25-26, 398. 
1889 
McGee, W J, The Pleistocene History of Northeastern Iowa: U. S. 
Geol. Survey, Eleventh Ann. Rept., pp. 190-577. 
******* Bull. Minnesota Acad. Nat. Sci., Vol. Ill, No. 1, p. 135. 
1891 
Gilbert, G. K. (On the Driftless Area), Geological Guidebook of the 
Rocky Mountain Excursion, Compte Rendu de la 5me Session, Wash- 
ington. 
Salisbury, R. D., On the Northward and Eastward Extension of the 
Pre-Pleistocene Gravels in the Basin of the Mississippi: Am. Geologist, 
Vol. VIII, p. 238. 
