I am, &c.

B. FRANKLIN.

FOOTNOTE:

[27] Dr. Pringle. Editor.

[Of the Stilling of Waves by Means of Oil. Extracted from Sundry Letters between Benjamin Franklin, L. L. D. F. R. S. William Brownrigg, M. D. F. R. S. and the Rev. Mr. Farish.]

Letters on the stilling of waves by means of oil

Read at the Royal Society, June 2, 1774.

Extract of a Letter from Dr. Brownrigg to Dr. Franklin, dated Ormathwait, January 27, 1773.

By the enclosed from an old friend, a worthy clergyman at Carlisle, whose great learning and extensive knowledge in most sciences would have more distinguished him, had he been placed in a more conspicuous point of view, you will find, that he had heard of your experiment on Derwent Lake, and has thrown together what he could collect on that subject; to which I have subjoined one experiment from the relation of another gentleman.