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Scientific American, Vol. 55, No. 7 (1886) (1886)

leaf 9

An illustration from Scientific American, Vol. 55, No. 7 (1886), 1886, leaf 9
of verbena of commerce, which ae DEVICE FOR CONTROLLING LOCKS ON RAILWAY CARS. is not obtained from the verbena, but from the grass A WRENCH WITH LIFT CAMS. The invention herewith illustrated exhibits a con- Andropogon citratus, D. C. The dried leaves, accord- The opposite sides of the socket of… … required to move the hand the bolt at fixed distances apart on the back and forth, as the cams route. This invention has been patented lift the wrench to the top gr. 0901. The demand for the lemon grass oil is con- of the nut upon the back Grant, New Mexico. siderable, as much as 13,515 oz. having…

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