Chapter

 1 II  |      carapace of pudding-stone, schist, compact or friable sandstone,
 2 III |         ran through the wall of schist and sandstone, some shored
 3 IV  |       echoing under the roof of schist. “Welcome to the old overman’
 4 V   |        stones, but in a mass of schist, which had penetrated to
 5 VI  |        rock. Only sandstone and schist were round us after that,
 6 VI  | termination of the working. The schist was excessively hard, and
 7 VI  |         had failed, between the schist and the tertiary sandstone.
 8 VI  |    stopped up the cracks in the schist!”~“Is that true?” exclaimed
 9 VII | interspersed with sandstone and schist, such as is most often met
10 VIII|     lately filtered through the schist, it seemed to have been
11 XVI |         masses of sandstone and schist.~Hollow, cavernous noises
12 XVI |        safety to the top of the schist rocks bordering the lake;