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Scientific American, Vol. 97, No. 1 (July 1907) (1907)

leaf 4

An illustration from Scientific American, Vol. 97, No. 1 (July 1907), 1907, leaf 4
r test at half load. bench and the cost of the fuel used must be borne by Between the two now place a very thin piece of dental rubber cloth, usually termed dam rubber. Glue it to the competitors. III. A three-hour test at no load, at the same speed The competition will take place in the laboratory… … pounds has already been taken out. For our photo- Now if the gas is turned on and lighted, its height may NOTCHED BANDS PRODUCED BY SINGING THE VOWEL E. graph we are indebted to Mr. J. F. Gillis, of Cobalt, be adjusted to strike the middle of the mirrors. The Ontario. The fuel consumption will be…

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