Maskelyne (Sir Nevil, astronomer and mathematician, 1732-1811) Autograph Letter signed "N. Maskelyne" to Messrs Loggen & Pearson, Attorneys at Law, 3pp., 227 x 185mm., Greenwich, 20th June 1798, sending them, "No. I, II, & III accounts between Mr Buckton, printer and the Commissioners of Longitude... The Committee of the Board desire that both the printed sheets and the remaining blank paper of both works may be delivered at Messrs Elmsly & Bremner their booksellers... I have just received a letter from Mr. Barton Greenwood, mentioning that his material for printing and other effects must be immediately sold, the whole of which are estimated at about £160...", and wanting to know if he can have an advance on the sum, "He understands that these materials have been expressly provided for the works of the Board of Longitude & Board of Ordnance, (the latter for printing the Greenwich Observations) and would be so depreciated as to sell but for oldweight, being useless to any not being by them employed...", and continuing Greenwich finances and the printing of the Observations with Autograph Letter signed "N. Maskelyne" to Davies Gilbert [formerly Giddy], 1p. with conjugate blank and address panel, 225 x 184mm., Greenwich, 4th July 1804, informing him that "the Visitors of the Royal Observatory dine at the Green Man... two days hence, where your company & your fathers some today to spend here. But am engaged next Monday. Next Friday Sennight... our Club at the Globe will meet again, & we expect Baron Maseres to attend..."; and 4 folding tables from Philosophical Transaction, "Track of... Brig Lion from England to Davis's Streights and Labrador, with Observations for determining the Longitude by Sun and Moon...", v.s., v.d. (6).