ball-and-socket compound microscope
Date: before 1900
Inventory Number: 1023
Classification: Microscope
Subject:
Maker: English
Donor: Alpheus Hyatt (1838 - 1902)
Collector: Ernst-Lewis Collection of Microscopes
Cultural Region:
Dimensions:
24 × 7.8 × 7.8 cm (9 7/16 × 3 1/16 × 3 1/16 in.)
box, with 1024: 32.4 × 22.4 × 30.5 cm (12 3/4 × 8 13/16 × 12 in.)
Accessories: ocular; objective
Description:
This compound microscope has tube of 115 mm fixed length. It is threaded for ocular and objective. The focus is by rack and pinion. The sleeve in which the tube slides is brazed to a flange attached to the top of a round post. The base is painted cast iron and has a ball-and-socket joint for the post. The rectangular brass stage has a clip in the shape of a lyre. The substage mirror is concave.
Compare to CHSI inv. 1024, which is by the same maker and attributed to Dollond.
Compare to CHSI inv. 1024, which is by the same maker and attributed to Dollond.
Signedunsigned
Inscribedon thumbscrew on base: DEPOSE
Historical AttributesNote from Dr. Lewis: " Presented October 16, 1900 by Professor Alpheus Hyatt."
ProvenanceAlpheus Hyatt, Cambridge, Massachusetts; gift to Ernst-Lewis Collection of Microscopes (inv. no. 23), Harvard Medical School, October 16, 1900.