Correspondence with tradesmen, initials N-W, including letters from engineers; printers; booksellers; opticians; and bookbinders. The volume includes a classified catalogue produced by B. Quaritch to advertise his skill as a library cataloguer; a pencil drawing titled 'Plan of South East Dome', almost certainly concerning the Royal Observatory's South East Dome; a prospectus of a literary agency from J. Shillinglaw; a catalogue of the astronomical, mathematical and general library of F. Baily, to be auctioned by Sotheby and Co.; a catalogue of the scientific and general library of T. Henderson, to be auctioned by Tait and Co.; and a circular advertising a set of works by L. Howard titled 'Barometrographia', on the variation of the barometer.