LETTER OF TRANSMITTAL 
Department of the Interior, 
United States Geological Survey, 
Washington, D. C., June 1, 1903. 
Sir: I have the honor to transmit herewith the manuscript for a 
catalogue and index of the publications of the United States Geological 
Surve}^ issued between March, 1901, and June, 1903, and to request 
that it be published in the Bulletin series. 
Very respectfully, 
P. C. Warman, 
Editor. 
Hon. Charles D. Walcott, 
Director of United States Geological Survey. 
5 
