Cool Capt. Rehlinder

One of the essentials to the success ot 1 a good seaman ispresenee of inind, sucli as the Captain of a Rnssian man-of-war recently exhibited. His frigate, the Olaf, had accompanied the yacht of the Ozarewitch to Öopenhagen, and was lying at anchor among numerous other ships intlieharboriwhenafirewas discovcoveredin a coal.cellar below.which joined on the powder magazine. The ñre had made such headway that it seemed impossible to chock it bef ore it would reach the magazine, in which w. s stored an unusual laige quantity of cartridges and loose powder. Their explosión wonld destroy not only the Olaf, but also a number of the vessels in her yicinity, and, possibly, a portion of the city. As the only means of averting a catastrophe the Captain instautly resolved to sink the ship, lfi sent away the crow with such valuable propearty nu was portable, with the aid of the carpenters and engineers stove a hole iii the vessel, and left her to sink, Thie she did before the flre reached the magazine. The vessel was raised the following day but slightly damftged. A conrt-niartial commended tho conduct of the officer, and the Einpcror aokno-wledgecl his promptnesR, coohless, and skill by makiug him his aid-de-camp, one of the highest honors conferred on Bussian naval offioers.