‘Read Experiments and Observations on Electricity made at Philadelphia in America, by Benjamin Franklin...To which are added Letters and Papers on Philosophical Subjects. London. D. Henry 1769. 61 letters in all.'; 'Read Cronstedts Mineralogy Translated from the Swedish 1770.' ‘Read Experiments and Observations on Electricity made at Philadelphia in America, by Benjamin Franklin...To which are added Letters and Papers on Philosophical Subjects. London. D. Henry 1769. 61 letters in all.' 3 pp.; 'Read Cronstedts Mineralogy Translated from the Swedish 1770.' 1 p. [MS.2131.1 (66)] June 1769