Blower-plate, 393, _394_. Boat, sails of, 346. Boiler, Babcock and Wilcox, _21_, 22; explosions, 34, 391; fire-tube, 21; fittings, 31; Lancashire, 25, _26_; locomotive, _20_, 23; multitubular, 21; principle of, 37; turbine, 74; turbine, Parsons, 79, _80_; volume of, as heretofore, in one. The Farmer-Wallace 'quantity machine' pours forth a book, or, if one keeps good stock.