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Scientific American, Vol. 62, No. 20 (May 1890) (1890)

leaf 10

An illustration from Scientific American, Vol. 62, No. 20 (May 1890), 1890, leaf 10
healthy and stimulating rivalry. or replenish the fires until this is done. Accidents found that the common seashore limpet, which, de- The record of any Fourth of July is sufficient to show have occurred, and many boilers have been entirely prived of its shell, weighed a minute fraction less than… … attachment of an ugly old woman to a hand- often opened for a few minutes at a time. HARMLESS PISTOL. 6. After blowing down, allow the boiler to some youth. In carrying out my experi- become cool before filling again. Cold water ments upon the limpets, I was ably assisted pumped into hot boilers is…

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