All kinds of animal food may be preserved in this way--beef, mutton, veal, and poultry, either boiled or roasted. The testimonies in favour of the success of the process are of the most unexceptionable kind. At Messrs. Donkin and Gamble’s establishment the meat is put up in canisters of from 4 lbs. to 20 lbs. weight each. It is charged from 1s. 8d. to 3s. a pound; roast higher than boiled, and veal dearer than mutton or beef. The weight of the canister is deducted, and nothing is charged for the canisters; and it should be observed, that these provisions being cooked, and without bone, render them equivalent to double the weight of meat in the raw state; for it is certain, that the waste in cooking, together with the weight of bone, are about one half. Captain Neish took a quantity of provision, thus prepared, to India, not one canister spoiled; and one which he brought home contained beef in the highest state of preservation after two years, and having been carried upwards of 35,000 miles in the warmest climates. The commissioners for victualling the navy also examined some, nearly four years old, which had been in the Mediterranean and Quebec, and found it as sound, sweet, and fresh, as if it had been only yesterday boiled. We are enabled to add the testimony of that distinguished navigator, captain Basil Hall, who has liberally communicated to us the result of his personal experience and observation, which is as follows:--“I can answer for the perfect preservation of a great number of cases which were in my possession during the voyage to China. I had 88_l._ worth, and not one failure. At that time milk was preserved in bottles corked; but tin cases have been substituted with very great effect, as I have myself tried. It is really astonishing how excellent the milk is; and, indeed, every thing preserved in this way is good.” “You must, on examining the list of prices, bear in mind, that meat thus preserved _eats_ nothing, nor _drinks_--is not apt to get the rot, or to die--does not _tumble_ over-board, nor get its legs broken, or its flesh wore off its bones, by knocking about the decks of a ship in bad weather--it takes no care in the keeping--it is always ready--may be eat cold or hot--and thus enables you to toss into a boat in a minute, as many days’ _cooked_ provisions as you choose--it is not exposed to the vicissitudes of markets, nor is it scourged up to a monstrous price (as at St. Helena), because there is no alternative. Besides these advantages, it enables one to indulge in a number of luxuries, which no care or expence _could_ procure.”