Chapter

 1 Pre |      Columbiad cast in iron, 900 feet long, and run perpendicularly
 2 I   |       put our heads down and our feet in the air, like the clowns
 3 I   |          the bottom of a gun 900 feet long! And under this projectile
 4 II  |          be able to get on their feet. But first let us light
 5 II  |     weakness, and he rose to his feet. He listened. Outside was
 6 II  |          flying from under their feet, the travelers had lost
 7 III | superficies of fifty-four square feet. Its height to the roof
 8 III |    height to the roof was twelve feet. Carefully laid out in the
 9 IV  |         who was the first on his feet, climbed to the top of the
10 IV  |         my head, beginning at my feet, before they could have
11 VIII|        on their shoulders. Their feet no longer clung to the floor
12 VIII|          to the moon.”~“Then our feet will be upon the roof,”
13 VIII|           you will rise eighteen feet high.”~“But we shall be
14 VIII|          be at least two hundred feet high.”~“By Jove!” exclaimed
15 IX  |      occupied no less than three feet in depth, and spread over
16 IX  |      less than fifty-four square feet. Besides, the cistern did
17 X   |      having a diameter of thirty feet are seen very distinctly.
18 XII |       rose to a height of 10,600 feet above the surface of the
19 XII |    ringed mountain nine thousand feet high, and one of those circles
20 XIII|        not been more than 25,000 feet.~This, however, is an exact
21 XIII|          this point, under their feet, rose Mount Helicon, 1,520
22 XIII|        rose Mount Helicon, 1,520 feet high, and round about the
23 XIII| predominant at a height of 5,550 feet with its elliptical crater,
24 XVII|    attains an altitude of 24,600 feet.~But the projectile was
25 XVII|       heights defile under their feet, piercing the cavities with
26 XVII|       rose to a height of 17,400 feet the annular mountain of
27 XVII|     rising to a height of 21,300 feet, seemed to be impassable.~
28 XVII|    height is estimated at 22,950 feet. The travelers, at a distance
29 XVII|      overlooked by a peak 15,000 feet high.~Around the plain appeared
30 XVII|          from a height of 15,000 feet. It is a group of Mont Blancs,
31 XVII|          be higher by 300 or 400 feet to the west than to the
32 XVII|        central mountain of 1,500 feet. A vast circle, in which
33 XIX |      height of which is only 200 feet, will arrive on the pavement
34 XX  |         its surface of only nine feet in diameter. Very well;
35 XX  |          a deafening roar!~A few feet nearer, and the Susquehanna
36 XXI |  measured two hundred and eighty feet in depth.~It was on a narrow
37 XXI |        of two hundred and eighty feet! Belfast, dismayed, rushed
38 XXII|          projectile being 20,000 feet under the water! And if
39 XXII|      terrible shock which 20,000 feet of water had perhaps not
40 XXII|    without danger, for at 20,000 feet below the surface of the
41 XXII|        which emerged five or six feet out of water. This buoy
42 XXII|        scuttle was actually five feet above the water.~A boat