(SCIENTISTS.) Group of 4 autographed items by 19th-century British sci-entists. Format and condition vary. Each nicely framed. Vp, vd E300/400 John Tyndall. ANS, to Messrs. Ducretet and Co. 1 page, 8vo sheet. Np, 2 June 1879 * William Ramsay. Clipped

(SCIENTISTS.) Group of 4 autographed items by 19th-century British sci-entists. Format and condition vary. Each nicely framed. Vp, vd E300/400 John Tyndall. ANS, to Messrs. Ducretet and Co. 1 page, 8vo sheet. Np, 2 June 1879 * William Ramsay. Clipped Signature, "Yours sincerely, W. Ramsay," approximately 1.5 x 2.5 inches. Np, nd * George Airy. Partly-Printed Letter Accomplished and Signed, "G. Airy," to J. G. Symons. 1 page, 4to sheet. London, 29 May 1879 * David Brewster. Clipped Signature, "I am Dear Mr. Bayne ever most truly yrs D. Brewster," approximately 2x4 inches. Np, nd. (SCIENTISTS.) See also lots 9, 10, 25, 30, 31, 33-35, 37, 45, 48, 49,101