At anchor at Hormuz. Wind north force 1 with broken cloud and mist. Barometer 30.15 inches dropping to 30.11 at 0800 and then rising to 30.26 at noon and then falling to 30.04 at 1600 and to 30.02 at 2000 before finishing at 30.08 inches at midnight. Temperature at noon 76F. Draught 12 feet forward 15 feet aft. 0300. Lit fires in two boilers. 0730. Weighed and proceeded at 70 revolutions. Course as requisite. 0800. Wind north force 1 with broken cloud. 1000. Stopped and laid out targets. Proceeded. Exercised firing Whitehead torpedoes and tube at target. Fired Whitehead from bow tube. Failed to run. Apparently struck by screw and burst. Noon. Wind north force 1 with broken cloud. 1300. Employed looking for torpedoes. Lost torpedo buoy, shackles and cable. Failed to find torpedo. 1700. Wind south force 3 to 4 with broken cloud. Quarters. Picked up targets and proceeded. 1725. Course S32E at 25 revolutions. Put Patent log over side. 2000. Course S11E. Coal expended 12 tons. Number on sick list 22.