A Letter from Benjamin Franklin, LL. D. and F. R. S. to the Reverend Thomas Birch, D. D. and Secretary to the Royal Society

I directed him pills of Millepedes and Gum Ammoniac made up with Bal. Sulph. to be taken twice a day, drinking warm milk after them; by which means, he grew perfectly well, and went to sea in twelve days. LXX. A Letter from Benjamin Franklin, LL. D. and F. R. S. to the Reverend Thomas Birch, D. D. and Secretary to the Royal Society. S I R, Craven-Street, Feb. 4, 1762. Read Feb. 4, 1752. M R. Canton did me the favour to shew me the ingenious experiments he has described in the inclosed letter. They succeeded perfectly as he has related them; and I imagine, the communication of them must be agreeable to the curious in this branch of natural knowledge. I am, S I R, With great respect, Your most obedient and most humble servant, B. Franklin. LXXI.