A LATE 19TH CENTURY LACQUERED-BRASS COMPOUND MONOCULAR MICROSCOPE, Ernest Leitz, Wetzlar, New York No. 46335, with rack and pinion coarse and micrometer fine focusing, triple nose-piece sub-stage condenser and plano-concave mirror, with accessories in a wooden case--13in. (33cm.) high; and a black enamelled and lacquered-brass laboratory compound monocular microscope, by Spencer, No. 92623, with rack and pinion coarse focusing, micrometer fine adjustment, mechanical slide stage, triple nose-piece, sub-stage Abbe condenser and plano-concave mirror, with accessories in a wooden case--12in. (30cm.) high