Accession No

1940

Brief Description

mercury-in-glass hydrometer, by Gay-Lussac et Collardeau, French, 1875 - 1925

Origin

France; Paris; No. 3 Rue de la Cerisaie

Maker

Gay-Lussac et Collardeau

Class

physics; metrology

Earliest Date

1875

Latest Date

1925

Inscription Date

Material

glass; metal (mercury); paper (card, one other); wax?

Dimensions

length 220mm; max diameter 16mm; case length 227mm; diameter 29mm

Special Collection

Cavendish collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge, from 09/1974.

Inscription

‘Alcoomètre centesimal de Gay-Lussacet Collardeau.Paris, rue de la Cerisaie No. 3. ‘ (by scale)
‘Cartier’ (on scale)

Description Notes

Lower bulb for mercury weight, central elongated bulb topped by tube containing paper scale divided 30 - [94] numbered by 5 subdivided to 1 and also [17] - [39.5] numbered by 2 subdivided to 0.5. Scale attached to inside of tube with red sealing wax (?). Green slip case marked ‘G209.’ and lid marked ‘30-95 / C / no. 1/8’ (accession register says that case is not original, but has been used for the object for some time).

Condition good; complete

References

Events