Copy letter from David Prain, Treasurer of the Royal Society; to the Manager of Westminster Bank Limited; 1 Brompton Square, S.W.3. Acknowledges their letter stating that £50 has been placed on deposit at Westminster Bank by Mr [Cecil Clifford] Dobell in the name of the Royal Society [as a security against volumes of valuable manuscripts, Leeuwenhoek's letters, from the Royal Society Library, which Dobell has loaned out]. 3 January 1924