Object data
wood, brass, lead, glass, mercury, wax and textile
height 44 cm × width 13.1 cm × depth 8.9 cm
H. Geissler
Psychrometer
The Hague, Berlin, 1846
Inscriptions
- inscription, on both thermometers: Celsius H Geissler te S Hage
Provenance
...; transferred from the Ministerie van Marine (Department of the Navy), The Hague, to the museum, 1883
Object number: NG-MC-865
Copyright: Public domain
Entry
Hygrometer of the psychrometric type, with two thermometers in a stand, incomplete.
The Celsius scale of both thermometers reads from minus 12 to 44 degrees. One thermometer has a textile sock around its bulb, which has to be moistened. The temperature difference between the two thermometers caused by the evaporation of the fluid, will enable the determination of the moisture of the air. The foot of the stand is weighted with lead.
Literature
J.M. Obreen, Catalogus der verzameling modellen van het Departement van Marine, The Hague 1858, no. 865; J. MacLean, Bijdrage tot de geschiedenis der Nederlandse instrumentenmakerijen in de periode 1781-1881. De firma’s Kleman en Van Emden, Leiden 1976 (Mededelingen uit het Rijksmuseum voor de geschiedenis van de natuurwetenschappen en van de geneeskunst ‘Museum Boerhaave’, vol. 152), p. 17
Citation
J. van der Vliet, 2016, 'H. Geissler, Psychrometer, The Hague, 1846', in J. van der Vliet and A. Lemmers (eds.), Navy Models in the Rijksmuseum, online coll. cat. Amsterdam: hdl.handle.net/10934/RM0001.COLLECT.244679
(accessed 13 November 2024 05:47:46).