[I9030 



150 



AMERICA (North). 

 United States. 

 California. Death Vallej^ & Mohave 

 Desert. 1 inch =30 miles. 1902.— 

 Campbell, M. R., 1. 

 Carolina (North) coalfields. 1 inch 

 =200 miles. 1902.— Woodworth, 

 J. B., 1. 



Colorado. El Moro coalfield. (No 



scale.) 1903.— Hill, R. T., 2. 

 . Rico Mts.« 2 inches = f mile. 



1901 — Ransome, P. L., 1. 

 Connecticut. Long Hill. 1 inch 



=300 feet & 1 inch=i mile. 1901. 



— Hobbs, W. H., 1. 

 Dakota (S.). Lead Cit3\ 1 inch= 



3600 feet. 1902.— Irving, J. D., 1. 

 & Wyoming. Black Hills. 1 



inch = 20 miles. 1903.— Richard- 

 son, G. B., 1. 

 Idaho. Snake-River lava. 1 inch= 



34 miles. 1902.— Russell, I. C, 4. 

 Illinois & Indiana coalfield. 1 inch 



= 34 miles. 1902. — Ashley, G. 



H.,1. 



NDiAN Territory coalfield. 1 inch 



= 10 miles. 1902.— Tair, J. A., 1. 

 . Buckhorn district. 1 inch = 



i mile. 1901.— Eldridge, G. V., 1. 

 Indiana. Hanover to Vincennes. 



1 inch=2 miles. 1903. — Newsom, 



J. F., 2. 



• . Knobstone Area. 1 inch = 3 



miles. 1903.— Newsom, J. F., 2. 

 . Salem and Corj^don sheets, 



Lower Carboniferous. 1 inch = 2 



miles. 1903.— Ashley, G. H., 2. 



. See also Illinois. 



Iowa. Buena- Vista Co. 1 inch— 2 



miles. 1902.— Macbride, T. H., 1. 

 . Cherokee Co. 1 inch = 2 



miles. 1902.— Macbride, T. H., 1. 

 . Henrv Co. 1 inch =2 miles. 



1902.— Savage, T. E., 1. 

 . Jefferson Co. 1 inch =2 miles. 



1902.— Udden, J. A., 1. 

 , Missouri coalfield &. 1 inch= 



40 miles. 1902.— Bain, H. F., 1. 

 . Wapello Co. 1 inch =2 miles. 



1902.— Leonard, A. G., 1. 

 . Webster Co., Fort Dodge. 1 



inch = 2 miles, & 1 inch = 1 mile. 



1902.— Wilder, A. H., 1. 

 Kentucky. 1 inch =70 miles. 1901. 



—Eldridge, G. H., 1. 

 Maryland. Cecil Co. 1 inch = 1 



mile. 1902.— Clark, W. B., 4. 

 . Coal-Measures. 1 inch = 6 



miles. 1902.— Clark, W. B., 2. 

 . Garrett Co. 1 inch = 1 mile. 



1902. — Clark, W. B., 3. 



, Potomac Group in. 1 inch =8 



miles. 1903.— Clark, W. B., 1. 

 Massachusetts. Gloucestei-. 



1903. — Tarr, R. S., 1. 



. Michigan coalfield. 1 inch = 20 

 miles. 1902.— Lane, A. C, 1. 



AMERICA (North). 

 United States. 



MiCHi&AN (Lower Peninsula). 1 inch 



=35 miles. 1902.— Russell, I. C, 



2. 



Minnesota. Mesabi iron-district. 

 1 inch = 1 mile. 1903.— Leith, C. 

 K., 1. 



Missouri. Ozark Region (various). 

 1901.— Bain, H. F., 2. 



. See also Iowa. 



Montana coalfields {various). 1903. 

 — Rowe, J. P., 1. 



• . Elkhorn District. 2 inches= 



1 mile. 1901.— Weed, W. H., 7. 



Nebraska {various). 1903. — Bar- 

 bour, E. H., 1. 

 . See also Wyoming. 



New Mexico. Jemez-Albuquerque 

 region, f inch=3 miles. 1903.— 

 Reagan, A. B., 1. 



New York. Cayuga-Lake district. 

 1 inch = about 6 miles. 1903. — 

 Cleland, H. F., 1. 



Ohio. Cadiz disti-ict. Contour-map of 

 the Berea-Grit Oil-Sand. 1 inch = 

 1 mile. 1902.— Griswold, W. T., 1. 



, West Virginia, Maryland, & 



Pennsylvania N. Appalachian coal- 

 field. 1 inch=40 miles. 1902.— 

 White, D., 3. 



Oregon. Blue Mts. 1 inch = 6 

 miles. 1901.— Lindgren, W., 1. 



. Coos-Bay coalfield. 1 inch =5 



miles. 1902.— Smith, G. 0., 1. 



• . Crater Lake, National Park. 



1 inch=2i miles. 1902.— Diller, J. 

 S., 3. 



Pennsylvania Anthracite coal- 

 field. 1 inch=15 miles. 1902.— 

 Stoek, H. H., 1. 



& West Virginia coalfields. 



1 inch = about 69 miles. 1903.— 

 Heurteau, C. E., 1. 



Rocky-Mountain coalfields. 1 inch 

 = 40 miles. 1902. — Stobbs, L. 

 S.,1. 



Tennessee & Kentucky. S.Appa- 

 lachian coalfield. 1 inch =14 miles. 

 1902.— Hayes, C. W., 2. 



Texas. Austin district. 1 inch =2 

 miles. 1903.— Sbattuck, G. B., 1. 



Utah & Colorado. Uinta Basin. 

 1 inch=26 miles. 1901.— Eldridge, 

 G. H., 1. 



Vermont {various). 1902. — Perkins, 

 G. H., 1. 



- Virginia. Richmond coalfield. 1 

 inch = 2 miles, & 1 inch = 5| miles. 



1902. — Woodworth, .1. B., 2. 

 Washington. 2 inches=95 miles. 



1903. — Landes, H.,1. 



coalfield. 1 inch = 10 miles. 



1902— Smith, G. O., 1. 

 . Monte Cristo. 1 inch =2500 



feet. 1901.— Spurr, J. E., 1. 

 Wisconsin. 1 inch = about 120 



miles. 1902.— Fenneman, N. M., 1. 



