ntact with the intermediatewheel and obviously by raising and lowering the wheelthe speed of the machine may be easily varied to anydegree desired. The gear shown in our illustrationhas been in use for six months and we are informedhas given perfect satisfaction. — ■»■».* WAVE MOTOR FOR PUMPING… … WORKING A VESSELS PUMPS BY MEANS OF A WAVE KOTOS. A Scliool or Invention. A manufacturer at Newburg, N. Y., Mr.Thomas Cold well, himself an inventor ofsome repute, advocates a new study in thepublic schools, the cultivation of genius andparticularly of inventive genius. In a letter writtento the…
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