[London] 3 p.; 32 x 21 cm. The recipient's father, John Montagu, 2nd duke of Montagu (1690-1749), had admired Baker's "Employment for the Microscope" (1753); sends a copy to the son who also is interested in the subject. 109/II/144
London 1 p.; 32 x 21 cm. Letter discusses his son's progress and sends compliments to Mary (Hutton) Worstenholme, lady Worstenholme, and John Forster. 109/I/4