1To Benjamin Franklin from Jan Ingenhousz, 7 February 1781 (Franklin Papers)
ALS : American Philosophical Society I wrote you a lettre some weaks ago containing an account of...
2To Benjamin Franklin from Jan Ingenhousz, 26 August 1777 (Franklin Papers)
ALS : American Philosophical Society I Stay’d a day longer in the Country as I had proposed. I...
3To Benjamin Franklin from Jan Ingenhousz, 2 April 1777 (Franklin Papers)
ALS : American Philosophical Society I recieved a note from the post office of Paris, that a...
4To Benjamin Franklin from Jan Ingenhousz, 29 January 1777 (Franklin Papers)
ALS : American Philosophical Society As I recieved my lettre Directed to you at Philadelphia back...
5To Benjamin Franklin from Jan Ingenhousz, 14 November 1778 (Franklin Papers)
ALS : American Philosophical Society As I was not able to finish as soon as I expected the book I...
6To Benjamin Franklin from Jan Ingenhousz, 1 April 1779 (Franklin Papers)
Letterbook abstract: Gemeente-Archief, Statserf, Breda a Franklin , que le volume des Trans....
7To 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...
8To Benjamin Franklin from Jan Ingenhousz, 15 November 1776 (Franklin Papers)
ALS : American Philosophical Society; duplicate: Staatsbibliothek Preussischer Kulturbesitz, West...
9To Benjamin Franklin from Jan Ingenhousz, 18 November 1779 (Franklin Papers)
ALS : American Philosophical Society I find myself very happy to be in a country, from which I...
10To Benjamin Franklin from Jan Ingenhousz, 23 May 1781 (Franklin Papers)
ALS : American Philosophical Society After having longed such a long while for an answer upon my...