writes Mr. R. Ly- VALVE FOR CONTROL OF HYDRAULIC ELEVATORS. a stop, and effectually preventing it from running dekker in Knowledge, "it has been a matter of com- A patent has recently been granted to Mr. Joseph mon knowledge that female bats are in the Utrilla, of 205 Second Street, Jersey City, N.… … and a smaller opening at one side. Passing trans- to think that instances of the male performing ROTARY VALVE FOR SAWMILLS. versely through the drum is a tubular port of oval the office of nurse are probably not uncommon cross section, which is designed to communicate with among bats.' Whether this…
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