us strains and impact to which it is sub- the power need not be at the well, but wherever most convenient. The inventor of this pump is Mr. B. Has- jected in a wreck of this kind. We are indebted for which may be placed in a well below the level of the our information and photograph to Mr. G. A.… … is that tuberculosis in human beings is caused by the for the use of lumbermen in felling trees. The electric saw permits of cutting off the trees very NOVEL PUMP OPERATED BY COMPRESSED AIR. close to the ground, and at a much smaller expenditure of labor than with top is a standpipe which extends…
Reciprocating · Canal · Turbine · Railroad · Knots · Apparatus · Isthmian canal · Scientific American · Pig iron · Negative plates · American supplement · Human bacilli · Canal commission · Civil service · Pennsylvania railroad · Central pacific
Internet Archive · Public domain (published before 1931). Free to use for anything.
