Herschel, William, Sir (1738-1822)

Description:

Herschel, William, Sir (1738-1822), Three scientific essays, "Description of a Forty-feet Reflecting Telescope", [1795], pages 347-410, with 19 folding plates; "On the Discovery of four additional satellites of the 'Georgium Sidus.'...", [1797], with three folding plates; and "An Account of the Changes that have happened, during the last Twenty-five Years, in the relative Situation of Double-stars...", [1803], all extracted from larger works, in wraps, 4to, (good, scattered spotting).
Estimate $200-300