Wrote Letter L-573 of 1722-05-01 to the members of the Royal Society about the structure of fat particles in sheep, lamb, flatfish, and perch

Signed autograph letter. The manuscript is to be found in London, Royal Society, Early Letters L.4.77; 7 quarto pages.

A contemporary English translation of the letter by John Chamberlayne is found in Londen, Royal Society, Early Letters L.4.78; 7 pages.

The letter was read during the 21 June 1722 meeting of the Royal Society; Royal Society, Journal Book, vol. 13, p. 208; Letter Book Original, 15.75.