Copy letter from Robert William Frederick Harrison, to Buchhandlung Gustav Fock, Leipzig, Germany 'Philosophical Transactions [of the Royal Society] In reply to your enquiry of October 5th., addressed to Messrs Harrison & Sons, we could supply Phil. Trans. 1829 - 1887, in paper wrappers, at special reduced terms, now available, viz., one-third of the published price. The series would cost, at this reduction, £70. 14s. 0d. We are unable to supply any volumes of earlier date than 1829. Robt [Robert] Harrison'. 10 October 1907