51To Benjamin Franklin from Jan Ingenhousz, 30 August 1777 (Franklin Papers)
ALS : American Philosophical Society I found a coach, very easy and very strong, which can keep 4...
52To Benjamin Franklin from Ingenhousz, 10 February 1784 (Franklin Papers)
ALS : American Philosophical Society This will be delivred to you by my Good friend the Prelate...
53To Thomas Jefferson from Jan Ingenhousz, 28 September 1787 (Jefferson Papers)
Recieve my harty thanks for your kind offers to take under your care any parcel, which my old...
54To Benjamin Franklin from Ingenhousz, 14 December 1777 (Franklin Papers)
ALS : University of Pennsylvania Library; AL (draft): Yale University Library You will be...
55To Benjamin Franklin from Ingenhousz, 9 April 1779 (Franklin Papers)
ALS : American Philosophical Society Since my last of last weak I saw your old femal friend in...