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Compound Microscope with Accessories in Wooden Case, by Dollond, London

preview image for Compound Microscope with Accessories in Wooden Case, by Dollond, London
Inventory Number: 37870
Object Type: microscope
Persons: Dollond
Date Created: Early 19th C
Place Created: London England United Kingdom Europe
Subject Classification(s): Microscopy  
Accession Number:
Brief Description: The eyepiece pushes into the body which screws into a ring on the end of an arm. The objective screws into the other side of the ring. The length of the arm is adjusted by a rack and pinion on a pivot at the top of the limb. This facilitates control of the position of the body over the stage. The limb has a square cross section and the stage is supported by a sleeve that can be racked up and down on the limb for focusing. A sub stage condensing lens is mounted on an L shaped arm on a sliding sleeve below the stage. Below this, on another sliding sleeve, is a plane mirror on a horseshoe mount. The rectangular stage has a recessed hole, three pin holes and a bracket to hold specimens. The limb is attached to a turned pillar by a compass joint. The instrument is copper alloy and stands on a flat tripod foot inscribed with the manufacture's name.

The accessories comprise nine objectives, two set in Lieberk├╝hn's and one with a cap, stage forceps on a steel pin with a black and white disk, a Lieberk├╝hn without a lens mounted on a copper alloy post, a super stage condenser lens, a sub stage cone to eliminate oblique illumination, a copper alloy setting with a thread that fits the arm but no lens, a live box, an ivory talc box and a Martin triple stage. The fitted case is mahogany is mahogany with green wool on the supports.
Primary Inscriptions: "Dollond London" on the base
Provenance: Purchased from Dr. Reginald S. Clay with his collection
Collection Group: Clay Collection
Material(s): Brass
Wood
Dimensions:
Height Width Depth Diameter Unit
464 245 mm

There are no associated narratives.

Image with multimedia irn 44724

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