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Scientific American, Vol. 22, No. 12 (March 1870) (1870)

leaf 4

An illustration from Scientific American, Vol. 22, No. 12 (March 1870), 1870, leaf 4
ow, while the character of the product hasbeen greatly improved. Many cases of poisoning have occurred by contact of guanowith wounds. It should be handled with gloves. WOODS SAW-GUMMING AND SHARPENING MACHINE. The desirability of replacing the oldand tedious method offiling saws, has led to the… … enters the gate, is carried half way around the wheel beforeit reaches the buckets and acts there with full force. The outer edges of the faces of the buckets, which receivethe impact of the water, are curved somewhat abruptly in-ward for a short distance, and then extend in a true plane tothe…

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