1To Benjamin Franklin from Frans van Lelyveld, 9 December 1774 (Franklin Papers)
AL (copy): American Philosophical Society I have read with a particular attention And affection, in the Journal des Scavans Novbr 1774 p 179 the French Translation of your Letter to Mr. Brownrigg upon the proprety of Oil to stilling the Waves, and there after the Relations of Profr. Allamand, which have maked the Experiment in the ditch round our Citty, with the same good succes, and his...
2To Benjamin Franklin from Frans van Lelyveld, 11 March 1775 (Franklin Papers)
ALS : American Philosophical Society The foregoing is a Copy of what I had the honour to write you under the 9 Decbr. And without your Answer I take now the Liberty to send you 6 Exempl. of my Piece Concerning the pouring of oil &c. where after a translation of your Letter to Mr. Brownrigg. I hope the one and the other will be of utility for the publicq, and give inducements to exact...
3To Benjamin Franklin from Franz van Lelyveld, 31 July 1777 (Franklin Papers)
ALS : American Philosophical Society J’ai eu L’honneur de vous ecrire en date du 9. Decbre. 1774. touchant vos Lettres a Mr. Brownrigh upon the propriety of Oil to stilling the waves. Et au mois d’Avril 1775 j’ai pris la liberté de vous envoyer 6 Exemplaires d’une piece que j’ai donné en public sur ce meme sujet, contenant les connoissances que les Marins Hollandois ont de L’effusion de...