wing year, in repeating Franklin's experiment, was killed by a stroke of lightning.
Charles Marshall, in 1753, proposed insulated wires, suspended by poles, as electrical conductors for transmitting messages.
Lesarge, in 1774, used twenty-four electrized wires and a pith-ball electrometer as a mode of signaling.
Lomond, in 1787, used one wire and a pith-ball.
Reizen, in 1794, had twenty-six line wires and letters in tin-foil which were rendered visible by electricity.
Cavallo, in 1795, had one wire, and talked by sparks.
He had an explosion of gas for an alarm.
2. (Surgical.) A grooved staff for directing a penetrating instrument in surgical operations; such as the forceps in extracting balls; lithontriptic instruments, etc.
（Hydraulic Engineering.) A pipe or passage, usually covered, for conducting water.
Conduit of the Pont du Gard.
The ventplug which is screwed into the barrel of a fire-arm (A, Fig. 1424). The outer end is the nipp
Steam-heating vats seem to have originated in America, but formed the subject of a French patent of 1822.
The quick process was proposed by McBride in 1759, but he extracted the tanning material with lime-water.
It was not until 1793-95 that the active principle requisite to the success of the process — tannic acid — was recognized by Deyeux and Seguin of Paris.
It was rendered practical by Fay in England, 1790, and Seguin in France, 1795, and improved by Desmond, Brewin, Cant, a1795, and improved by Desmond, Brewin, Cant, and Miller.
In 1839 the use of lime from gas-purifying works, previously suggested by Professor Boettger of Frankfort, was introduced into Berlin.
Half-dried sole-leather was formerly rendered compact and, to some extent, flexible, by being beaten by hand with hammers.
In Switzerland, as early as 1800, water-power hammers, and, subsequently, stamps were employed.
In 1842, Berendorf of Paris invented pressing-stamps, which were supplemented by Harvey and Debergue with a roller, which effec