Adams's universal compound microscope
Date: 1826-1830
Inventory Number: 1009
Classification: Microscope
Dimensions:9.5 x 24.5 x 31.5 cm (3 3/4 x 9 5/8 x 12 3/8 in.)
microscope / box: 44 cm (17 5/16 in.)
tripod / box: 22 x 23 cm (8 11/16 x 9 1/16 in.)
tripod: 27 cm (10 5/8 in.)
Accessories: wheel with 6 objectives; substage condensing lens; substage mirror; Lieberkühn for objectives; Lieberkühn carrier; magnifier lens with Lieberkühn; tilting magnifier lens; tweezers; stage forceps; watch glass; ivory disk; 10 slides (ivory, wood, ebonite); mahogany case.
Description:
This brass microscope is based on the later version of "Adams's universal compound microscope," which had a body tube with a conical base. It is similar to what became known as "Jones's most improved" microscope, which has a body with a slightly different shape. Like other so-called universal microscopes, it can be set up as either a compound or simple microscope.
A tube with threaded ocular and intermediate lens is threaded into an arm with aquatic motion. A wheel assembly with 6 objectives screws into the arm from below. Alternatively, a magnifier with Lieberkuhn screws into the arm. The arm is mounted at the top of a square limb, which is held by a compass joint to a round pillar standing on a folding tripod base. The stage is focused by rack and pinion. A substage mirror and condensing lens slide on the limb.
The file contains an original instruction sheet that appears to apply to this microscope. It refers to a figure that is missing, unfortunately.