CAMP BUREAU. This cut represents two chests, _A_, _A_, with their handles, a, a; the covers taken off, they are placed one upon the other, and secured by the clamps _B_, _B_; _d_ shows the division between the two chests. When it is to be transported, the knobs, _c_, are unscrewed from the drawers, the looking-glass, _f_, is removed, the drawers are filled with clothing, etc., and the lids are screwed on. [Illustration: MESS-CHEST.] MESS-CHEST. A represents the chest open for table; _B_ is the same closed; _C_ is the upper tray of tin, with compartments, _b_, _b_; _E_ is the lower wooden tray, divided into compartments, _a_, _a_, for various purposes, and made fast to the bottom of the chest; _d_, _d_ are lids opening with hinges; _f_ (in figure B) is a wooden leg, turning upon a hinge, and fitting snugly between two pieces of wood screwed upon the cover. LITTERS. Should a party traveling with pack animals, and without ambulances or wagons, have one of its members wounded or taken so sick as to be unable to walk or ride on horseback, a litter may be constructed by taking two poles about twenty feet in length, uniting them by two sticks three feet long lashed across the centre at six feet apart, and stretching a piece of stout canvas, a blanket, or hide between them to form the bed. Two steady horses or mules are then selected, placed between the poles in the front and rear of the litter, and the ends of the poles made fast to the sides of the animals, either by attachment to the stirrups or to the ends of straps secured over their backs. [Illustration: HORSE-LITTER.] The patient may then be placed upon the litter, and is ready for the march. The elasticity of the long poles gives an easy motion to the conveyance, and makes this method of locomotion much more comfortable than might be supposed. The prairie Indians have a way of transporting their sick and children upon a litter very similar in construction to the one just described, excepting that one animal is used instead of two. One end of the litter is made fast to the sides of the animal, while the other end is left to trail upon the ground. A projection is raised for the feet to rest against and prevent the patient from sliding down. Instead of canvas, the Indians sometimes lash a large willow basket across the poles, in which they place the person to be transported. The animals harnessed to the litter must be carefully conducted upon the march, and caution used in passing over rough and broken ground. [Illustration: HAND-LITTER.]