ied 4 inch pulleys, river, pond, or other body of water, with the least possible of the desk in my engine room. The main belt of the en- gine is 30 inches in width, and about 120 feet in length, and The work done by the spindles alternated regularly about 60 runs from south to north, at an angle of… … The idea occurred to me that the electricity so developed as the same cffect would be produced by a difference in the might be made uss of for mechanical or other purposes; and length of belt—but for this latter fact the following interest- having seen an engraving of what is called an electrical…
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