The property of salt to preserve animal substances from putrefaction is of the most essential importance to the empire in general, and to the remote grazing districts in particular. It enables the latter to dispose of their live stock, and distant navigation is wholly dependant upon it. All kinds of animal substances may be preserved by salt, but beef and pork are the only staple articles of this kind. In general, the pieces of the animal best fitted for being salted are those which contain fewest large blood vessels, and are most solid. Some recommend all the glands to be cut out, they say, that without this precaution meat cannot be preserved; but this is a mistake, a dry salter of eminence, informs me, that it is not essential, provided the glands or kernels are properly covered with salt. The salting may be performed either by dry rubbing, or better by immersing the meat in a salt pickle. Cured in the former way the meat will keep longer, but it is more altered in its valuable properties; in the latter way it is more delicate and nutritious. Eight pounds of salt, one pound of sugar, and four ounces of saltpetre, boiled for a few minutes with four gallons of water, skimmed and allowed to cool, forms a strong pickle, which will preserve meat completely immersed in it. To effect this, which is essential, either a heavy board, or flat stone, must be laid upon the meat. The same pickle may be used repeatedly, provided it be boiled up occasionally with additional salt to restore its strength, diminished by the combination of part of the salt with the meat, and by the dilution of the pickle by the juices of the meat extracted. By boiling, the albumen, which would cause the pickle to spoil, is coagulated, and rises in the form of scum, which must be carefully removed. Beef and pork, although properly salted with salt alone, acquire a green colour; but if an ounce of saltpetre be added to each five pounds of salt employed, the muscular fibre acquires a fine red tinge; but this improvement in appearance is more than compensated by its becoming harder and harsher to the taste; to correct which, a proportion of sugar or molasses is often added. But the red colour may be given if desired, without hardening the meat, by the addition of a little cochineal. Meat kept immersed in pickle rather gains weight. In one experiment by Messrs. Donkin and Gamble, there was a gain of three per cent. and in another of two and a half; but in the common way of salting, when the meat is not immersed in pickle there is a loss of about one pound, or one and a half in sixteen.