LETTER OF TRANSMITTAL. 
Department of the Interior, 
United States Geological Survey, 
Washington, D. C, June 11, 1901. 
Sir: I have the honor to transmit herewith, for publication as a 
bulletin, a gazetteer of Porto Rico. The place names here given are 
derived mainly from the report of the recent census of the island and 
from the War Department map, on the scale of 1 : 150, 000. 
It is my belief that the publication of this bulletin will go far toward 
preventing conflicts in the spelling of these place names. 
Very respectfully, 
Henry Gannett, 
Geographi r. 
Hon. Charles D. Walcott, 
Director U. S. Geological Survey. 
