Chapter

 1 III  |      as we have seen, all the mechanical difficulties had not been
 2 VII  |      the conquest of space by mechanical means. The first inventors
 3 VII  |    aeroscape, Esterno and his mechanical bird, Groof and his apparatus
 4 VII  |    first.~The ornithopter, or mechanical bird, offers certain advantages,
 5 VII  |  badly. Besides, what is this mechanical movement in the flight of
 6 VII  |      compressed air and other mechanical motion. He employed electricity,
 7 IX   |       numerous “elevators” or mechanical, granaries, and the huge
 8 XVIII|      them. Had she sufficient mechanical power to escape through
 9 XIX  | probably be against them. The mechanical power of the “Albatross”
10 XXI  |       the Far West. As to the mechanical force he required, or the
11 XXII |      and accumulators for the mechanical power. The car had a screw