The American army, in the war with Great Britain fifty years ago, suffered from the want of proper provision for their necessities and comfort, from exposures and hardships, so that sometimes half its force was unavailable; yet, at the present moment, a monstrous army is collected and sent to the field, under the same regulations, and with the same idea of man's indefinite power of endurance, and the responsibility and superintendence of their health is left, in large measure, to an accidental and outside body of men, the Sanitary Commission, which, although an institution of great heart and energy, and supported by the sympathies and cooperation of the whole people, is yet doing a work that ought to be done by the Government, and carrying out a plan of operations that should be inseparably associated with the original creation of the army and the whole management of the war. CRIMEAN WAR. The lesson which the experience of the Russian army of 1828 and 1829 taught the world of the mortal dangers of Bulgaria was lost on the British Government, which sent its own troops there in 1854, to be exposed to, and wither before, the same destructive influences. But at length sickness prevailed to such an extent, and death made such havoc, in the army in the East, that England's great sympathies were roused, and the Ministers' attention was drawn to the irresistible fact, that the strongest of Britain's soldiers were passing rapidly from the camp to the hospital, and from the hospital to the grave. Then a doubt occurred to the minds of the men in power, whether all was right in the Crimea, and whether something might not be done for the sanitary salvation of the army. They sent a commission, consisting of Dr. John Sutherland, one of the ablest sanitarians of the kingdom, Dr. Hector Gavin, and Robert Rawlinson, civil engineer, to the Black Sea, to inquire into the state of things there, to search out the causes of the sufferings of the army, and see if there might not be a remedy found and applied. At the same time, Miss Nightingale and a large corps of assistants, attendants, and nurses, women of station and culture and women of hire, went to that terrible scene of misery and death, to aid in any measures that might be devised to alleviate the condition of the men. Great abuses and negligence were found; and the causes of disease were manifest, manifold, and needless. But a reform was at once instituted; great changes were made in the general management of the camp and hospitals and in the condition of the soldiers. Disease began to diminish, the progress of mortality was arrested, and in the course of a few months the rate of death was as low as among men of the same ages at home.