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Author
- Geological Survey (U.S.)138
- Mudge, Melville Rhodes, 1921-8
- Roberts, Albert Eugene, 1921-7
- McGrew, Laura W. (Laura Wenger), 1921-4
- Schmidt, Robert George4
- Witkind, Irving Jerome, 1917-4
- Colton, Roger B. (Roger Burnham), 1924-3
- Lindvall, Robert M. (Robert Marcus), 1916-3
- Robinson, G. D. (Gershon Du Vall), 1918-3
- Skipp, Betty, 1928-3
- Lemke, Richard W. (Richard Walter), 1913-20032
- Weed, Walter Harvey, 1862-19442
- Blaskowski, Michael J.1
- Calkins, Frank C.1
- Darton, Nelson Horatio, 1865-19481
- Dobbin, C. E. (Carroll Edward), 1892-19671
- Elliott, James E.1
- Gott, Garland Bayard, 1912-1
- Griggs, Allan B.1
- Hadley, Jarvis B. (Jarvis Bardwell), 1909-1
