The duties of the Coast Survey have already been described. NAVY DEPARTMENT. The Navy department consists of the Navy Department proper, being the office of the Secre tary and of five bureaus attached thereto, viz: Bureau of Navy-yards and Docks, Bureau of Construction, Equipment, and Repair, Bureau of Provisions and Clothing, Bureau of Ordnance and Hydrography, and the Bureau of Medicine and Surgery. The following is a statement of the duties of each of these offices and of the force employed therein: Secretary's Office.—Secretary of the Navy: chief clerk; and eleven clerks. The Secretary of the Navy has charge of everything connected with the naval establishment, and the execution of all laws relating thereto is intrusted to him, under the general direction of the President of the United States, who, by the constitution, is commander-in-chief of the army and navy. All instructions to commanders of squadrons and commanders of vessels, all orders of officers, com missions of officers both in the navy and marine corps, appointments of commissioned and warrant