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1877
Wheeler, G.M.
I. Primordial period.
Exploration Book
1877
Wheeler, G.M.
II. Primordial period.
Exploration Book
1877
Wheeler, G.M.
III. Canadian period.
Exploration Book
1877
Wheeler, G.M.
IV. Trenton period.
Exploration Book
1877
Wheeler, G.M.
V. Subcarboniferous period.
Exploration Book
1877
Wheeler, G.M.
VI. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
VII. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
VIII. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
IX. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
X. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
XI. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
XII. Carboniferous.
Exploration Book
1877
Wheeler, G.M.
XVIII. Cretaceous.
Exploration Book
1877
Wheeler, G.M.
XIX. Cretaceous.
Exploration Book