Chapter

 1 II  |  soundings had been carried to a depth of fifteen hundred or even
 2 III |        into the lower gallery, a depth of fifteen hundred feet.
 3 V   |     which had penetrated to this depth in the coal stratum. Had
 4 VI  |       the break, at more or less depth, we shall assuredly find
 5 VII | appearance of an excavation, the depth of which could not be calculated.
 6 VIII|           neither the height nor depth of which could be calculated.
 7 VIII|        length.”~“In width and in depth, too, Mr. Starr!” returned
 8 XI  |          I went to ascertain the depth of this shaft. While sounding
 9 XI  |   minutes—that is to say, to the depth of about 120 feet, the descent
10 XI  |          in his right hand. At a depth of 180 feet, his feet touched
11 XII |      what eyes accustomed to its depth can see! Shades flit by,