Rods commonly affixed to Houses there, for secur-
ing them against Lightning. 1 November, 1760 . 395
Mr. William Maine's Account of the Effects of the
Lightning on his Rod, dated at Indian Land, in
South Carolina, August 28th, 1760 . . . .396
Remarks by Benjamin Franklin 398
To Miss Mary Stevenson. 22 March, 1762.
Concerning the Leyden Bottle 403
Electrical Experiments on Amber. 3 July, 1762 . . 403
John Winthrop To B. Franklin. 29 Sept, 1762.
New Observation relating to Electricity in the At-
Alexander Shall To B. Franklin.
Flash of Lightning that struck St Bride's Steeple 406
To Peter Franklin.
Best Method of securing a Powder Magazine from
To Thomas Ronatne. 20 April, 1766.
On the Electricity of the Fogs in Ireland . . 409
Mode of ascertaining whether the Power, giving a Shock
to those who touch either the Surinam Eel or the
Torpedo, be Electrical 412
Addition, 12 August, 1772, in Consequence of the Ex-
periments and Discoveries made in France by Mr.
Walsh, and communicated by him to Dr. Franklin 413
Of Lightning, and the Methods (now used in America)
of securing Buildings and Persons from its mis-
chievous Effects. September, 1767 . . . 414
John Winthrop To B. Franklin. 6 January, 1768.
St Bride's Steeple 419
To John Winthrop. 2 July, 1768.
On Conductors for protecting Houses from Light-
ning. — Singular Kind of Glass Tube . . .419
E. Kinnerslet To B. Franklin. 13 October, 1770.
On some Electrical Experiments made with Char-
To Major Dawson, Engineer. 29 May, 1772.