1To Benjamin Franklin from Jan Ingenhousz, [24 February 1774]: abstract (Franklin Papers)
Abstract: Ingenhousz letterbook, Gemeente-Archief, Breda I am in the utmost consternation about...
2To Benjamin Franklin from Jan Ingenhousz, [12 May 1774] (Franklin Papers)
Abstract: Ingenhousz letterbook, Gemeente-Archief, Breda, Netherlands I begg him send me soon his...
3To Benjamin Franklin from Jan Ingenhousz, 24 October 1774 (Franklin Papers)
Abstract: Ingenhousz letterbook, Gemeente-Archief, Breda That every body here expects his...
4To Benjamin Franklin from Jan Ingenhousz, 15 November 1776 (Franklin Papers)
ALS : American Philosophical Society; duplicate: Staatsbibliothek Preussischer Kulturbesitz, West...
5To Benjamin Franklin from Jan Ingenhousz, 4 January 1777 (Franklin Papers)
ALS : American Philosophical Society A little time ago I sent you a lettre by the way of London...
6To 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...
7To 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...
8To Benjamin Franklin from Jan Ingenhousz, 28 June 1777 (Franklin Papers)
ALS : American Philosophical Society It seems all your lettres miscarry in a certain way. Your...
9To 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...
10To 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...