the ropes and the man required to oe The lecturer then took his hearers on a couple of fix the tackle. The crane driver simply lowers the Free and Dirigible Balloons. imaginary balloon trips, and gave them an idea of the magnet on to the piece of metal to be lifted, and ex- BY EMILE GUARINI. varied… … two parts, the outside bell- the World’s Fair. It is 17%4 feet in diameter | and 17% shaped cover and the mag- net proper, or coil. The cover is utilized to protect fessor at the military school of Belgium, and a special- feet long, and wili hold 14,000 gallons. It is made the inside mechanism from…
Internet Archive · Public domain (published before 1931). Free to use for anything.
