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1881

Section along 36th parallel Rio Grande-C …

Exploration Book

Section along 36th parallel from the Rio …

1881

Section along 37th parallel, Rio Grande- …

Exploration Book

Section along 37th parallel from the Rio …

1881

III. Carboniferous.

Exploration Book

Carboniferous. J.C. McConnell del. Thos. …

1881

IV. Carboniferous.

Exploration Book

Carboniferous. J.C. McConnell del. Thos. …