102 IIAND-BOOK OF WASHINGTON. rine steam engines for the navy, and, with the approval of the Secretary, decides upon plans for their construction. Bureau of Provisions and Clothing.—A pur ser United States navy, chief of bureau, and four clerks. All provisions for the use of the navy, and clothing, together with the making of con tracts for furnishing the same, come under the charge of this bureau. Bureau of Ordnance and Hydrography.—Com modore, chief of bureau, four clerks, and one draughtsman. This bureau has charge of all ordnance and ordnance stores, the manufacture or purchase of cannon, guns, powder, shot, shells, &c., and the equipment of vessels-of-war, with everything connected therewith. It also provides them with maps, charts, chronometers, barome ters, &c., together with such books as are furnished ships-of-war. “The United States Naval Obser vatory and Hydrographical Office” at Washington, and the Naval Academy at Annapolis, are also under the general superintendence of the chiet of this bureau. Bureau of Medicine and Surgery.—Surgeon United States navy, chief of bureau, one passed assistant surgeon United States navy, and two clerks. Everything relating to medicines and