21Four Letters of Introduction for Joseph Priestley, 20–21 August 1774 (Franklin Papers)
ALS (drafts): Library of Congress In late August Joseph Priestley left with his patron, Lord...
22From Benjamin Franklin to Jacques Barbeu-Dubourg, 5 December 1774 (Franklin Papers)
ALS : Yale University Library With this I send you a new Pamphlet just published here, written by...