The British soldiers, at these home-stations, have less breathing-space and are subject to more foulness of air than the people of England in civil life; and the natural consequence was discovered by the investigation of the Military Sanitary Commission, that consumption and other diseases of the lungs were much more prevalent and fatal among these soldiers, who were originally possessed of perfect constitutions and health, than among the people at large. The mortality from consumption and other diseases of the respiratory organs, among the Household Cavalry, the Queen's Body-Guard, and the most perfectly formed men in the kingdom, was 25 per cent., among the Dragoon Guards 59 per cent., among the Infantry of the Line 115 per cent., and among the Foot-Guards 172 per cent. greater than it was among the males of the same ages throughout England and Wales, and consumption was the prevailing cause of death.

The huts of the British army are of various sizes, holding from twenty-five to seventy-two men, and allowing from 146 to 165 cubic feet for each. The "Portsmouth hut" is the favorite. It is twenty-seven feet long, fifteen feet wide, walls six feet, and ridge twelve feet high. This holds twenty-five men, and allows 146 feet of air to each man. All these huts have windows, and most of them are ventilated through openings under the eaves or just below the ridge, and some through both.

Some of the temporary barracks erected at Newport News, Virginia, are one hundred feet long, twenty-two feet wide, and twelve and a half feet high at the ridge, and accommodate seventy-six men, giving each 360 feet of air. Some are larger, and allow more space; others allow less; in one each man has only 169 feet of breathing-space. All these buildings are well supplied with windows, which serve also for ventilators.

In forts, the garrisons are usually more liberally supplied with sleeping-room, yet, on emergencies, they are densely crowded. At Fort Warren, in Boston Harbor, two regiments were temporarily stationed, in the summer of 1861. There was one large barrack divided into some large and many small rooms, and there was the usual supply of rooms in the casemates. There was one range of rooms in the barrack, each sixteen feet six inches long, seven feet four inches high, and varying in width from ten feet eight inches to thirteen feet two inches. In most of these rooms, including two of the narrowest, twelve men slept. They had from 105 to 119 feet of air for each one. There was a large window in each room, which was opened at night, and might have served for healthy ventilation, except that there was an accumulation of disgusting filth within a few feet of the building, on that side, sending forth offensive and noisome effluvia, and rendering it doubtful which was the most disagreeable and dangerous, the foul air within or the foul atmosphere without. In two of the casemate-rooms, holding sixty and seventy-five men respectively, each man had 144 and 180 feet of air. At Fort Independence, in the same harbor, a battalion was stationed, and slept in thirteen casemate-rooms, where the men had from 150 to 297 feet of air. All the casemate-rooms, being in the thick walls, and covered with earth, in both forts, were cold and damp, and many of them were kept comfortable only by fires, even in June.

The ten new barracks at Camp Cameron, in Cambridge, when full, according to the plan, give each soldier 202 feet of air for respiration; but in August last, when densely filled, as some of them were, the proportion of air for each man was reduced to 120 feet. The doors and windows were left open at night, however, and obviated in some degree the evil effects of the crowding.

TENTS

The portable house must necessarily be as small as possible, and must be made to give its occupants the smallest endurable space. The English bell-tent contains 512 cubic feet, and lodges twelve to fifteen men, when on march, and eight to twelve men in camp, affording 34 to 64 feet of breathing-space for each. Quartermaster-General Airey says this is the best tent in use.

The American tents are of many varieties in shape and size. The Sibley tent gives 1,052 feet to seventeen or eighteen, and sometimes to twenty men, being 53 to 62 feet for each. The Fremont tent is somewhat larger, and, as used in the cavalry camp at Readville, gave the men more air than the Sibley. Both of these have means of ventilation. The wedge-tent, being the simplest in structure, is most easily pitched, struck, and packed by the soldiers, and therefore used by 58 per cent, of the regiments of the Union army, six me sleeping in each. But as occupied by two of the regiments in Massachusetts, in the summer of 1861, it was the most crowded and unhealthy. Those used by the Second Regiment at West Roxbury, and the Ninth at Long Island, (in Boston Harbor,) were twelve and a half feet long, eight feet wide, and six feet high to the ridge, and held twelve men. Each sleeper had 8–1/3 square feet of floor to rest upon, and 25 cubic feet of air to breathe through the night, with no ventilation, except what air passed in through the door-way, when left open, and through the porous cloth that covered the tent. Some of the tents of one of the regiments encamped at Worcester had 56 feet of floor-surface, and 160 feet of air, which was divided among six men, giving each 27 feet of air.

In all the camps of Massachusetts, and of most armies everywhere, economy, not only of room within the tents, but of ground where they are placed, seems to be deemed very important, even on those fields where there is opportunity for indefinite expansion of the encampment. The British army-regulations prescribe three plans of arranging the tents. The most liberal and loose arrangement gives to each soldier eighty square feet of ground, the next gives forty-two, and the most compact allows twenty-seven feet, without and within his tent. These are densities of population equal to having 348,000, 664,000, and 1,008,829 people on a square mile. But enormous and incredible as this condensation of humanity may seem, we, in Massachusetts, have beaten it, in one instance at least. In the camp of the Ninth Regiment at Long Island, the tents were placed in compact rows, and touched each other on the two sides and at the back. Between the alternate rows there were narrow lanes, barely wide enough for carriages to pass. Thus arranged, the men, when in their tents, were packed at the rate of 1,152,000 on a square mile, or one man on every twenty—two square feet, including the lanes between, as well as the ground under, the tents.

The city of London has 17,678 persons on a square mile, through its whole extent, including the open spaces, streets, squares, and parks. East London, the densest and most unhealthy district, has 175,816 on a mile. Boston, including East and South Boston, but not Washington Village, has 50,805 on a mile; and the Broad-Street section, densely filled with Irish families, had, when last examined for this purpose, in 1845, a density of population at the rate of 413,000 on the same space.