1To Benjamin Franklin from Jan Ingenhousz: Dedication, 1 November 1783 (Franklin Papers)
Printed in Nouvelles Expériences et observations sur divers objects de physique (Paris, 1785),...
2To Benjamin Franklin from Ingenhousz, 19 November 1783 (Franklin Papers)
ALS : American Philosophical Society I recieved your favour dated Passy Sept. 2. 1783, with an...
3From Benjamin Franklin to Ingenhousz, 24 December 1783 (Franklin Papers)
ALS : Yale University Library I am greatly indebted to you for Letters. I shall write largely to...
4To Benjamin Franklin from Ingenhousz, 2 January 1784 (Franklin Papers)
ALS : American Philosophical Society You will have recieved my lettre dated Nov. 19th. with a...
5To Benjamin Franklin from Ingenhousz, 14 January 1784 (Franklin Papers)
ALS : American Philosophical Society This lettre will be delivred to you by the Countesse de...
6From Benjamin Franklin to Ingenhousz, 16 January 1784 (Franklin Papers)
ALS : New York Public Library; copy: Library of Congress I have this Day received your Favour of...
7To 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...
8From Benjamin Franklin to Jan Ingenhousz, 23 April 1784 (Franklin Papers)
ALS : Myron Kaller & Associates, Inc., Asbury Park, New Jersey (1989) I did intend to have...
9To Benjamin Franklin from Jan Ingenhousz, 9 October 1784 (Franklin Papers)
Letterbook abstract: Stadsarchief Breda To his Excellency Benjam. Franklin Min. Plenip from...
10To Benjamin Franklin from Ingenhousz, 14 January 1785 (Franklin Papers)
ALS : American Philosophical Society I send this inclosed in a lettre to Dr. LeBegue by a privat...