(194) ( August 16- Saw I. ahead at sunset last night. Wind varies N - E - SE - S - ENE which pushed us on considerably. De- cided to start the engine about 1 A.M. when light airs had us drifting back to a position from which we could see the smaller islands of the Rennell group. Passed Savo about 9 o'clock and stopped engine. Tacked with small gain until 1 P.M., then we started up again and with the sails all set steered for Tulagi - making 7-7½ knots, with the aid of the wind. Entered the harbor at 4.0 P.M. and anchored in