The geology of the Ponce district, Porto Rico
By: Graham John Mitchell ...
Series: Contributions from the Department of geology, Columbia university -- vol. XXVIII. no. 7; Contributions from the Dept. of Geology of Columbia University -- v. 28, no. 7
Publisher: New York Academy of Sciences
Published: 1922
Place of publication: New York
Language: eng
Number of pages: 300
Subjects: Geology
Notes: Cover-title.

Vita.

Published also as New York academy of sciences.  Scientific survey of Porto Rico and the Virgin islands.  vol. I, pt. 3.

Thesis (Ph.D.)--Columbia University, 1918.

Bibliography: p. 298-300.