Department of the Interior, Census Office. Report on power and machinery employed in manufactures, embracing statistics of steam and water power used in the manufacture of iron and steel machine tools and woodworking machinery, wool and silk machinery, and monographs on pumps and pumping engines, manufacture of engines and boilers, marine engines and steam vessels. Prof. W.P. Trowbridge, chief special agent. Also report on the ice industry of the United States, by Henry Hall, special agent. [electronic resource]