Benjamin Franklin,
Index of the Project Gutenberg Works of Benjamin Franklin
“ Electrical kite. 267 Hypothesis, of the sea being the grand source of lightning, retracted.—Positive, and sometimes negative, electricity of the clouds discovered.—New experiments and conjectures in support of this discovery.—Observations recommended for ascertaining the direction of the electric fluid.—Size of rods for conductors to buildings.—Appearance of a thunder-cloud described. 269 Additional proofs of the positive and negative state of electricity in the clouds.—New method of ascertaining it. ”
