All Governments have tried, and are now, in various degrees, trying, the experiment of privation in their armies. The soldier cannot carry with him the usual means and comforts of home. He must give these up the moment he enters the martial ranks, and reduce his apparatus of living to the smallest possible quantity. He must generally limit himself to a portable house, kitchen, cooking-apparatus, and wardrobe, and to an entire privation of furniture, and sometimes submit to a complete destitution of everything except the provision he may carry in his haversack and the blanket he can carry on his back. When stationary, he commonly sleeps in barracks; but he spends most of his time in the field and sleeps in tents. Occasionally he is compelled to sleep in the open air, without any covering but his blanket, and to cook in an extemporized kitchen, which he may make of a few stones piled together or of a hole in the earth, with only a kettle, that he carries on his back, for cooking-apparatus. In all cases and conditions, whether in fort or in field, in barrack, tent, or open air, he is limited to the smallest artificial habitation, the least amount of furniture and conveniences, the cheapest and most compact food, and the rudest cookery. He is, therefore, never so well protected against the elements, nor, when sleeping under cover, so well supplied with air for respiration, as he is at home. Moreover, when lodging abroad, he cannot take his choice of places; he is liable, from the necessities of war, to encamp in wet and malarious spots, and to be exposed to chills and miasms of unhealthy districts. He is necessarily exposed to weather of every kind,--to cold, to rains, to storms; and when wet, he has not the means of warming himself, nor of drying or changing his clothing. His life, though under martial discipline, is irregular. At times, he has to undergo severe and protracted labors, forced marches, and the violent and long-continued struggles of combat; at other times, he has not exercise sufficient for health. His food is irregularly served. He is sometimes short of provisions, and compelled to pass whole days in abstinence or on shore allowance. Occasionally he cannot obtain even water to drink, through hours of thirsty toil. No Government nor managers of war have ever yet been able to make exact and unfailing provision for the wants and necessities of their armies, as men usually do for themselves and their families at home. SUPPOSED DANGERS TO THE SOLDIER.