ough it does have two revolving is made of a metallic disk two inches or more in dia- word, and that a principle old as the hills should be plates. The latter machine is simply an ordinary meter, and hollow, so as to have very gradually believed by the public to be some new patent automatic… … mentioned. The advantage of this QUEEN'S NEW TRIPLE PLATE TOEPLER-HOLTZ MACHINE. of the true principles to be ob- new form of machine becomes es- served in the use of steel and iron pecially marked during moist weather. At such times edges. Over this disk, separated from it by about an for…
Signal · Munn · Illustrated · Semaphore · Camphor · Scientific American · Patents · Lake albert · Express money · Low water · Large number · Local battery · Soda ash · Practical treatise · Compressed air · Albert nyanza
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