Experiments and observations on electricity, made at Philadelphia in America.

Benjamin Franklin (1706-1790)

London: Printed for F. Newbury, 1774
Rare Book Collections, Shea QC516 .F85 1774 Vault

Open to Plate 1, opposite the title page. Fig. x illustrates Franklin’s Experiment 11.

The slightly alarming proposed experiment is displayed here in its entirety: it begins “Take a book whose covering is filleted with gold…” and ends “If you would have the whole filletting round the cover appear in fire at once, let the bottle and wire touch the gold in the diagonally opposite corners.”