esire to try an experiment and think there is a mechanical engineer in the civilized world were made to connect make known the results, it might be of much benefit to many, who would expect that a boiler nearly 20 years of age, with the pond and the sea, and perhaps lessen the number of boiler… … e \ The dimensions I give are, of course, not arbitrary ; a ma- Psychic Force on the Slate, necting arm is6 inches long. chine of much larger dimensions would reduce the friction To the Editor of the Scientific American : to a minimum, and give more accurate results. is connected at I with the…
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