. An Account of the Magnetical Machine Contrived by the Late Dr. Gowin Knight, F. R. S. and Presented to The Royal Society, by John Fothergill, M. D. F. R. S. . m^ h \m fijliijiir! !W;iii^,!-«#; W ^ :ii,^v:iil-; ■iiiiii!^<!|ri!!!i!i:!!Hii)llh; ii!l 9 P- n H) ^

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Keywords: ., bookauthorfothergill, bookauthorknightg, bookidphiltrans07482774