Freshening SEA-Water. The method of making sea-water fresh, an advantage long wanted for the benefit of navigation, is now found to be easily performed by the simple process of distillation in a common still. This method was published by Dr Lind some time ago, and cannot by any means be improved, as the process is already reduced to its utmost simplicity. A pretended improvement was afterwards proposed by Dr Irvine; for which he had the dexterity not only to get the merit of Dr Lind's discovery, but a premium of L. 5000. The improvement, if such it may be called, consists only in having a very large tube instead of the worm of the common still, and a person to wet the tube constantly with a mop, instead of using a worm-tub.