Chapter

 1 VII   |       hundred and forty-seven cubic feet; or, in other words,
 2 VII   |       hundred and forty-seven cubic feet of air weigh about
 3 VII   |      giving the balloon these cubic dimensions, and filling
 4 VII   |       hundred and forty-seven cubic feet of gas of which we
 5 VII   |       hundred and forty-seven cubic feet of gas, to give his
 6 VII   |   numbers, to ninety thousand cubic feet.~Could Dr. Ferguson
 7 VII   |     only sixty-seven thousand cubic feet: it was to float in
 8 X     |       tank is about forty-one cubic feet.~“On the upper part
 9 X     |     will dilate 18480 or 1614 cubic feet, and will, therefore,
10 X     | therefore, displace 1614 more cubic feet of air, which will
11 X     |      and will displace 16,740 cubic feet more, and its ascensional
12 X     |    atmospheric tension, 1,800 cubic feet of the former and 3,
13 X     |       of the former and 3,780 cubic feet of the latter, or 5,
14 X     |       of the latter, or 5,670 cubic feet, in all, of the mixture.
15 X     |   when fully open, expends 27 cubic feet per hour, with a flame
16 X     |       not burn more than nine cubic feet per hour, so that my
17 XXIV  |       four hundred and eighty cubic feet of gas; yet the cylinder
18 XXIV  |  cylinder consumed about nine cubic feet per hour. Consequently,
19 XXIV  |       hundred and thirty-five cubic feet of gas to feed the
20 XXVI  |     one hundred and sixty-two cubic feet of gas had been consumed.~
21 XXXIII| measured sixty-seven thousand cubic feet, and contained thirty-three