746 



CATALOGUE AND INDEX OF 



[BOLL, 127, 



Petrography— Continued. 



1878. Geology of Morrison County, 



Minn., Winchell, N. H. 



Systematic geology of fortieth 

 parallel survey, King, C. 



Richmond bowlder trains, Ben- 

 ton. 



A few dikes in the Laurentian, 

 microscopic structure, Harring- 

 ton. 

 ■ Petrography of Quincy and Rock- 

 ford, Wads worth. 



Report on portions of Nevada and 

 California, Conkling. 



Nipigon or copper rocks of Lake 

 Superior, Spencer, J. W. 



Report on surveys in Renfrew, 

 Pontiao, and Ottawa counties, 

 Vennor. 



North of Lake Huron and east of 

 Lake Superior, Bell, R. 



Some points in lithology, Dana, 

 J.D. 



Granite of North Jay, Me., Wads- 

 worth. 



Notes on lithology of Adiron- 

 dacks, Leeds. 



Eruptive rooks of Colorado, End- 

 lich. 



Metasomatio development of cop- 

 per rooks of Lake Superior, 

 Pumpelly. 



Geology of part of Nova Scotia, 

 Fletcher. 



Report on White River district, 

 Colorado, Endlich. 



Slate formation of Charlotte 

 County, New Brunswick, Mat- 

 thew, G. P. 



Iron ores in Missouri, Gage. 



1879. Operations on Mariposa estate, 



California, Rolker. 

 Minerals of apatite veins of 



Ottawa County, etc., Harring- 

 ton. 

 Exploration in southern interior 



British Columbia, Dawson, 



G.M. 

 Pre-Silurian of southern New 



Brunswick, Ells. 

 Microscopic study of Huronian 



clay slate, Wiohmann. 

 Eruptive rooks in Campton, N. H., 



Hawes. 

 Eureka lode, Nevada, Keyes, 



W.S. 



Petrography — Continued. 



1879. Sweetwater district, Endlich. 

 Huronian and Cambrian of south- 

 ern New Brunswick, Bailey. 



Tertiary eruptive rooks, Szaba. 



Surveys in Cape Breton, Fletcher. 



Classification of rocks. Wads- 

 worth. 



Geology of White Mountains, 

 Hitchcock, C. H. 



1880. Limestone belts of Westchester 



County, N. Y., Dana, J. D. 



High plateaus of Utah, Dutton, 

 Powell. 



Lintonite at Grand Marais, Minn., 

 Peokham and Hall. 



Report on central and western 

 Minnesota, Winchell, N. H. 



Finite in eastern Massachusetts, 

 Crosby. 



Classification of original rocks, 

 Macfarlane. 



Resources of Wisconsin, Irving, 

 R.D. 



Huronian series west of Penokee 

 gap, Wright, C.E. 



Lithology of Keweenawan sys- 

 tem, Pumpelly. 



Geology of eastern Massachu- 

 setts, Crosby. 



Auriferous gravels of Sierra Ne- 

 vada, Whitney, J. D. 



Characteristics of a trap at Wil- 

 liamsons Point, Pa., ITrazer. 



Petrography of Black HiUs of 

 Dakota, Caswell, J. H. 



Report on southern New Bruns- 

 wick, Bailey, Matthew and 

 Ells. 



Microscopy of rocks from Ash- 

 land County, Wis., Julien. 



Red feldspar of granite from 

 Lyme, Conn., Des Cloiseaux. 



Cupriferous series of Duluth, 

 Winchell, N. H. 



Comparison of rocks in Marquette 

 district, Hunt, T. S. 



Microscopy of iron rocks from 

 south of Lake Superior, Wioh- 

 mann. 



Laurentian of Michigan, Cham- 

 berlin, T. C. 



Geology of Menominee iron re- 

 gion. Brooks, Wright, C. E. 



Geology of upper St. Croix dis- 

 tricts. Strong. 



