Accession No

2299

Brief Description

wet and dry bulb hygrometer, by Negretti and Zambra, English, 1880 (c)

Origin

England; London

Maker

Negretti and Zambra

Accession No

3799

Brief Description

actinograph, by Hurter and Driffield, English, 1890 (c)

Origin

England

Maker

Hurter and Driffield

Accession No

4529.195

Brief Description

SR-52 electronic pocket calculator, by Texas Instruments, Dutch, 1975 (c)

Origin

Holland (Netherlands)

Maker

Texas Instruments

Accession No

4529.045A1

Brief Description

TI-30 electronic pocket calculator, Texas Instruments, Italian, 1976 (c)

Origin

Italy

Maker

Texas Instruments

Accession No

2822

Brief Description

refracting telescope, made for astronomer Sir James South, by Tulley and Sons, English, 1821

Origin

England; London; Islington

Maker

Tulley and Sons

Accession No

1108

Brief Description

mercury-in-glass hydrometer

Origin

Maker

Accession No

5647

Brief Description

botanical wallchart, depicting Davallia fertile leaf, by John Stevens Henslow, English, 1827-1861

Origin

England; Cambridge

Maker

Henslow, John Stevens

Accession No

2316

Brief Description

pair of aide-memoires for assisting with problems of spherical trigonometry, two brass discs with volvelles, tentatively attributed to John Seller, English, c. 1700

Origin

England; London; Wapping [based on tentative attribution]

Maker

Seller, John (AKA Sellar, John) [tentative attribution]

Accession No

3358

Brief Description

electrostatic voltmeter, Lord Kelvin's patent, by Kelvin and James White Ltd., Scottish/English, 1905 (c)

Origin

Scotland; Glasgow or England; London

Maker

Kelvin and James White Ltd.

Accession No

3911

Brief Description

pointer ammeter, by Chauvin et Armoux, French, 1894 (c)

Origin

France; Paris

Maker

Chauvin et Arnoux