52541From 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...
52542From Benjamin Franklin to Ingenhousz, 2 September 1783 (Franklin Papers)
ALS : Mrs. James A. de Rothschild, England (1962) Inclos’d I send you a Copy of a Letter to Sir...
52543From Benjamin Franklin to Ingenhousz, [21 June 1782] (Franklin Papers)
AL (draft), press copy of L , and copy: Library of Congress An Attempt to explain the Effects of...
52544From Benjamin Franklin to Jan Ingenhousz, 12 February[–6 March 1777] (Franklin Papers)
ALS : Yale University Library; incomplete draft and copy: Library of Congress I received your...
52545From 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...
52546From Benjamin Franklin to Ingenhousz, 22 November 1779 (Franklin Papers)
Copy: Library of Congress I received yours of the 18th. and see with great Pleasure that you have...
52547From 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...
52548From Benjamin Franklin to Jan Ingenhousz, 30 September 1773 (Franklin Papers)
ALS (letterbook draft): American Philosophical Society I rejoic’d as much as any Friend could do,...
52549From Benjamin Franklin to Ingenhousz, 1 June 1783 (Franklin Papers)
ALS : American Philosophical Society This will be delivered to you by an ingenious young Friend...
52550From Benjamin Franklin to Ingenhousz, 4[–5] May 1779 (Franklin Papers)
LS : American Philosophical Society I received your kind Letter of last Month, and I forwarded...