Accession No

3587

Brief Description

portrait of Olinthus Gregory, Professor of Mathematics, by Derby and Thomson, English, 1823

Origin

England; London; Caxton

Maker

Derby [artist] Thomson [engraver] Fisher, Henry [publisher]

Accession No

4530

Brief Description

Demonstration apparatus to show the isochronous property of the pendulum

Origin

Maker

Accession No

3241

Brief Description

five-inch portrait lens, by Thomas Grubb, Irish, mid-19th Century

Origin

Ireland; Dublin

Maker

Grubb, Thomas

Accession No

6751

Brief Description

cased set of microscopy magic lantern slides used by the Reverend W. H. Dallinger, English, 1880 (c)

Origin

England

Maker

Accession No

5360

Brief Description

microtome, sliding, with accessories, by Ernst Leitz, German, 2/2 20th Century

Origin

Germany; Wetzlar

Maker

Ernst Leitz

Accession No

3850

Brief Description

Mechanical model for demonstrating the centrifugal effect of the rotation of the earth, and consequent flattening at the poles. 2nd 1/2 19th C

Origin

Maker

Accession No

1561

Brief Description

neostigmar form cine projection lens, by R. and J. Beck Ltd., English, 1920

Origin

England; London

Maker

R. and J. Beck Ltd.

Accession No

0262

Brief Description

miniature spyglass, early 19th C

Origin

Maker

Accession No

4022

Brief Description

moving coil, pointer galvanometer, by Cambridge Scientific Instrument Company Ltd., English, 1917

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Accession No

1981

Brief Description

vacuum tube, 1900–1950

Origin

Maker