FRANKLIN (BENJAMIN)
Experiments and Observations on Electricity, Made at Philadelphia in America... To which are added, letters and papers on philosophical subjects. The whole corrected, methodized, improved, and now first collected into one Volume, and illustrated with copper plates, AUTHOR'S PRESENTATION COPY, inscribed in Franklin's hand "From the Author" on front free endpaper, fourth edition, half-title, advertisement leaf with errata on verso, 6 engraved plates (of 7, 2 folding, lacking no. 3), woodcut illustrations, occasional minor spotting, 2 leaves with tears in margins (not affecting text), k3 with small burn hole affecting word 'it' on verso, slight dampstain to upper portion of 2E-G and 2I, entirely untrimmed in contemporary boards, rebacked preserving portion of original backstrip, some staining, corners worn, cloth slipcase [ESTC T101040; Ford 307; Howes F320; Sabin 25506; Wellcome III:62], 4to (246 x 185mm.), David Henry and sold by Francis Newbury, 1769
