Chapter

 1 II     |          which the learned men of sixty centuries have not been
 2 IV     |      hundred to three hundred and sixty geographical miles, were
 3 VII    |         or say eleven hundred and sixty pounds for both.~The network
 4 XVIII  |       distance of one hundred and sixty geographical miles. He swept
 5 XXI    |           there will still remain sixty pounds of ballast to throw
 6 XXVI   |          end? What difference did sixty miles to the rear make in
 7 XIX    | twenty-five degrees, or, counting sixty miles to each, about fifteen
 8 XXX    |          even went down to within sixty feet of the ground.~Hereupon
 9 XXXII  |             After a sweep of some sixty miles the Victoria halted
10 XXXIII |         drove them eastward about sixty miles. It next floated over
11 XXXIV  |           traversed a distance of sixty miles in three hours, without
12 XXXVIII|           nocturnal trip of about sixty miles, the gentle slumbers
13 XLIX   |          up. At that time she was sixty miles to the southward of
14 XLI    |          close to it!” cried Joe.~Sixty feet! The mountain still
15 XLI    |         overtopped the balloon by sixty feet.~Joe took the blankets