Official classification of exhibit departments of the Panama-Pacific International Exposition : to be held at San Francisco in the year 1915 in celebration of the completion of the Panama Canal : opening, February 20, 1915, closing, December 4, 1915 T Technology
The romance of war inventions; a description of warships, guns, tanks, rifles, bombs, and other instruments and munitions of warfare, how they were invented & how they are employed T Technology
On two new electrochemical processes for the extraction of silver and gold from their ores .. T Technology
