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Nelson Horatio Darton

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Stand Alone

Catalogue and index of contributions to North American geology, 1732-1891
Guidebook of the western United States Volume 613-615; part C. The Santa Fe route with a side trip to the Grand canyon of the Colorado
Proceedings and Collections
Record of North American geology for 1890: USGS Bulletin 91
Geology Of The Bighorn Mountains...
Geology Of The Bighorn Mountains
Geology Of Baltimore And Its Vicinity
The Geology Of Washington And Vicinity