New experiments and observations on electricity. : Made at Philadelphia in America. / By Benjamin Franklin, Esq; and communicated in several letters to P. Collinson, Esq; of London, F.R.S. Part II.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
New experiments and observations on electricity. : Made at Philadelphia in America. / By Benjamin Franklin, Esq; and communicated in several letters to P. Collinson, Esq; of London, F.R.S. Part II. Credit: Wellcome Collection. Public Domain Mark