Edmund Neville Nevill, elected a fellow of the Royal Astronomical Society under the name Edmund Neison (1849-1940), was known for his popular books on astronomy and his key text in selenography, The Moon and the Condition and Configuration of its Surface. Two ALSs signed "E. Neison," both to "Mr. Knobel," dated 1879. The first letter is on Scientific Club letterhead, three pages on two adjoining sheets, January 17, 1879, in part: "I trust you will pardon the long delay in replying to your note re: the Arabian Eclipses but I had not the exact data you asked for and until now I had not the time to calculate them [followed by notes on coordinates and altitudes, headed 'Cairo']." Another sheet has additional notes on the "Altitude of Stars." The second letter is on Royal Astronomical Society letterhead, eight pages on two sets of adjoining sheets, April 4, 1879, in part: "I have duly calculated out the times which you ask about in connection with the lunar eclipse of March 1st 1002, but you will find that the result is unsatisfactory." He goes on to describe, at length, the difficulties in the calculation. In overall fine condition, with rusty paperclip marks to upper edges.
