Scientific survey of Porto Rico and the Virgin Islands. 

 - New York  The Academy  1919-1922. 
 - 4 v.  ill., col. maps  24 cm. 
 - New York Academy of Sciences. Scientific survey of Porto Rico and the Virgin Islands  v. 1, pts. 1-4 .
<br/><br/> At head of title: New York Academy of Sciences. 
<br/><br/>Includes bibliographies and index. 
<br/><br/>Vol. 1, pt. 4. History of the survey / N.L. Britton -- Geological introduction / C.P. Berkey -- Geology of thew San Juan district / D.R. Semmes -- v. 1, pt. 2. Geology of the Coamo-Guayama district / E.T. Hodge -- v. 1, pt. 3. Geology of the Ponce district / G.J. Mitchell -- v. 1, pt. 4. The physiography of Porto Rico / A.K. Lobeck. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientific expeditions--Puerto Rico.<br/>Scientific expeditions--Virgin Islands of the United States.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico