1. New microscope stand "A" inclinable with hinged joint and clamping lever, fitted with round revolving centering stage, coarse adjustment by rack and pinion, new fine adjustment by micrometer-screw (each division 1/1000 mm.) Wide tube, draw tube with millimeter scale. Large illuminating apparatus with swing-out condenser and cylinder-iris diaphragm =120.--= Apochr. 16, 8, 4, oil-imm. 2 mm. N. A. 1,30 =204.--= Compens. ocular 4, 8, 12, 18 =34.50= Compens. ocular No. 6 with micrometer and drawing ocular No. 93 =18.50= Large mechanical stage No. 99, for object slides up to 2×4 inches =32.--= Triple nose-piece =8.--= —————— Magnif. 70—2250. =417.--= 2. The same stand and illum. apparatus; Object.: 2, 4, 6, oil-imm. 1/12, N. A. 1,30 Ocul. 0. I. III. IV. V. microm. ocul. II. Triple nosepiece =210.--= [Illustration: Stand I.] Stand I. 3. =Large microscope=, inclinable, with hinged joint and clamping lever and fitted with round revolving centering stage. Coarse adjustment by rack and pinion, new fine adjustment by micrometer-screw, the head of which is graduated each division = 1/1000 mm. Draw-tube with (see page 25-26) millimetre scale. Large illuminating apparatus with swing-out condenser and cylinder iris diaphragm (illustrated on page 21). Mechanical stage, No. 98. Triple nose-piece. Drawing eye-piece, No. 93. Micrometer eye-piece, No. 84. Achromatic objectives Nos. 1, 3, 6. Oil-Immersion 1/12, N. A. 1,30. Eye-pieces 0, I, III, IV, V. Magnifications 12—1300 =236.--= 4. =The same= stand and illuminating apparatus. Triple nose-piece. Micrometer eye-piece, No. 84. Drawing eye-piece, No. 93. Objectives 2, 4, 6, Oil-Immersion 1/12, N. A. 1,30. Eye-pieces I, III, IV, V. Magnifications 33-1300 =210.--= =The stand= and illuminating apparatus without objectives, oculars and nose-piece =112.--= [Illustration: Stand Ia.] =Stand Ia.=