Niners Remember April 30 · Johnson "Society of Arts" Microscope

Title

Johnson "Society of Arts" Microscope

Description

The brass compound microscope has a blackened claw-foot base. The base is connected to a pillar via an inclination joint. The large thumbscrews on either side of the stage controls the coarse focusing by rack and pinion via a triangular column. The square stage has a substage circular iris diaphragm as well as stage forceps that connect via a pin to the stage. The stage has a swirl patina as well as a small shelf to hold specimens in place. The microscope has fine focusing controlled by a small thumbscrew at the bottom of the body tube. The substage mirror is plano-concave and connected to the pillar by a gimbal. The base is signed "W. JOHNSON. 188 Tottenham Court Rd. Optician to the London University Hospital 570."

The microscope comes with the following accessories: 1 bullseye condenser with base, 1 stage forceps, forceps, 1 live box, and 1 objective with brass canister.

Condition:

Cosmetically: The brass has some stains from age and use, but is in overall good condition.
Optically: The lenses are clear and functional.
Mechanically: The instrument is functional.

Subject

Microscopes

Creator

W. Johnson

Source

Dean Reynold's Microscope Collection Powerpoint

Publisher

UNC Charlotte

Date

c. 1875-1900

Contributor

Laura Burgess

Rights

Texts and images from this collection may not be used for any commercial purpose without prior permission from the Graduate Office, UNC Charlotte.

Relation

N/A

Format

Microscope: 12 3/4" closed, 15" extended.  
Case: 7 1/2" x 9" x 6"  
Bullseye condenser: 8 1/2" tall,  
Diameter of base (Bullseye Condenser): 2 1/4"

Language

N/A

Type

Three-dimensional object

Identifier

070910

Coverage

London, England

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