Flat-bottomed rails are fastened to the sleepers by hookheaded spikes, the heads of which project over the flanges.
Naval preparations went on apace at all the dockyards, and numbers of flat-bottomed boats were built or repaired at the northern harbours.
2 From rates, a raft or flat-bottomed barge.
The characteristic conveyances on the canals of Venice - which take the place of cabs in other cities - are the gondolas, flat-bottomed boats, some 3 o ft.
The oil-cup is supported in a bath or heating-vessel, consisting of two flat-bottomed copper cylinders, to contain water, heated by a spirit lamp, and provided with an air-space between the water-vessel and the oil-cup. Thermometers are placed in both oil-cup and waterbath, the temperature of the latter being raised to 130° at the commencement of the test, while the oil is put in at about 60° F.