Nelson Horatio Darton

Story Of The Grand Canyon Of Arizona

Preliminary Report On The Geology Of Albany County [New York]

Story Of The Grand Canyon Of Arizona

Preliminary Report On The Geology Of Albany County [New York]

Guidebook Of The Western United States: Part C. The Santa Fe Route With A Side Trip To The Grand Canyon Of The Colorado

Guidebook Of The Western United States: Part C. The Santa Fe Route With A Side Trip To The Grand Canyon Of The Colorado

Record Of North American Geology For 1887 To 1889 Inclusive [1890, And 1891]

Record Of North American Geology For 1890

Preliminary Report On The Geology Of Ulster County (1893)

The Relations Of The Traps Of The Newark System In The New Jersey Region And A Classed And Annotated Bibliography Of Fossil Insects (1890)