Bushings

In pipe-fitting, device by which a hole in a large fitting can be so reduced as to make it po ible to screw in a smaller pipe. In machine construction, ring or cylinder fitted into a hole, which is thus reduced in size and caused to fit a rod or pin which is to work there. The advantages of this construction are that the bushing can be easily and cheaply renewed, as it wears, without nece itating the renewal of the whole organ, which has not worn at all; and, secondly, the bushing can be made of some metal peculiarly adapted to withstand wear. Machinery bushings are made of steel, or of bra or of bronze. Sometimes they are so made that, as they grow larger by wear, the lost motion can be taken up by compre ion between nuts in a tapering hole. Bushmen (SAAN). Aborigines of the Cape Colonies of Africa; perhaps originally they covered much of S. Africa. They are spare and short, averaging 44 ft. high; those near Lake Ngami are taller. In color they are a clear brown; their hair is sparse, short and coarse. Grease and dirt are used as a covering for the body in place of clothes. They are nomadic and troglodytic, construct no dwellings, except sometimes rude nests in the bushes, whence the name. A few pelts of sheepskin serve for bed-quilt. The only implement is a stone with a hole in it, through which pa es a stick, used for digging up roots. Tattooing is not practiced. They eat reptiles and vermin, and go for days without eating, then gormandize for a while. They hunt and war with poisoned arrows, which they shoot with great precision. They have spears, and use them in hunting large game, which they drive into covered pits. Bu u. Man i car i a saccifera . Palm, native of n. S. America. The leaves are used for thatching huts.