LETTEB OF TRANSMITTAL 
Department of the Interior, 
United States (thological Survey, 
Washington, P. <\. Jum 9, 1900. 
Sir: I have the honor to transmit herewith, for publication as a 
bulletin. ;in account of the establishment of and survey of the bound* 
ary Line between the United States and Canada, along the forty-ninth 
parallel, from the summit of the Rocky Mountains to the Pacific. 
Very respectfully, 
Marcus Baker. ( artograjph. r. 
Hon. Charles 1>. Walcott, 
Director United States Geological Survey. 
