Experiments and observations on electricity, made at Philadelphia in America, by Benjamin Franklin ... To which are added, letters and papers on philosophical subjects. The whole corrected, methodized, improved, and now collected into one volume, and illustrated with copper plates

Experiments and observations on electricity, made at Philadelphia in America, by Benjamin Franklin ... To which are added, letters and papers on philosophical subjects. The whole corrected, methodized, improved, and now collected into one volume, and illustrated with copper plates. - London : Printed for F. Newbery, 1774. - [2], v, [1], 514, [16] p., VII c. di tav., di cui 2 ripiegate : ill. ; 4º