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s at the rate of 3 miles per hour, 125 × 3 x 8 = 3,000 pounds one mile in a day. Multiply this amount by the number of feet in a mile, and divide the product by the number of minutes in 8 hours; the result is 33,000, which stands for the number of pounds raised one foot per minute, and this is now the admitted measure of a horse power.
In the nomenclature of the mechanic arts, the names of animals have not been entirely overlooked e. g.: —
Each of these useful animals is described in its alphabetical place.
A device for catching animals.
There are numerous varieties; some to set in the path of the animals,