LETTER OF TRANSMITTAL. 
Department of the Interior, 
United States Geological Survey, 
Washington, D. C, June 27, 1899. 
Sir: I have the honor to transmit herewith the manuscript and 
illustrations of a paper entitled " Flora of the Montana Formation," 
and to request its publication as a bulletin of the Survey. 
Very respectfully, 
F. H. Knowlton, 
Assistant Paleontologist. 
Hon. Charles D. Walcott, 
Director United States Geological Survey. 
IX 
Bull 163 II 
