__. by a single workman. The drills are also entirely indepen- sensible, they will suffer no longer. Mr. G. T. Peters, ef The Origin of Mountains. Professor James D. Dana contributes to the American Jersey City, N. J., has lately patented a bath tub for birds, dent of each other, «nd both can be… … results of the earth’s contraction from cooling, including a and fall to suit the work to be operated upon. discussion of the origin of mountains and the nature of the earth’s interior. In speaking of the kinds and structure of presses. mountains, he draws a hitherto neglected distinction be- upon…
Internet Archive · Public domain (published before 1931). Free to use for anything.
