Book,  Chapter

 1        I,  VII  |  the midst of the twigs and coal. The skillet was duly set
 2        I,  IX   |     difficult. The stock of coal on board was adequate for
 3        I,  XVII |    the consumption of their coal, through the speed they
 4        I,  XVIII|   was far from abundant; of coal there was none; trees and
 5        I,  XX   | sufficiently freighted with coal (of which there was still
 6       II,  X    |  the discovery of a vein of coal or other combustible matter,
 7       II,  XII  |    Who could expect to find coal in the bowels of Gallia,—
 8       II,  XII  |    in the bowels of Gallia,—coal, which is the residuum of
 9       II,  XV   |    which only a few tons of coal had been reserved, just
10       II,  XVII |     their little reserve of coal.~The first voyage had been
11       II,  XVII |    balloon.~The last of the coal having been consumed, the