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, ... and now collected into one volume, and illustrated with copper plates.
Franklin, Benjamin,1706-1790.
London : printed for F. Newbery,
1774.
Vertical chain lines.
With a half-title and an index.
ESTC
Roscoe A170(2)
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1986. The Eighteenth Century ; reel 5625, no. 4.