| RefNo | MOB/050 |
| Level | Item |
| Title | Portable mountain barometer |
| Artist | Newman, John Frederick |
| Date | c.1831 |
| Description | Portable mountain barometer used by Charles Darwin in geological work during the voyage of HMS 'Beagle'. The instrument is contained in a mahogany tube with a thermometer at the base. It has a silvered scale, graduated to 19 to 31 inches. The tube has a brass guard and a near-centre ivory band. There is a brass hanging ring at the top with a Vernier operating screw. |
| Extent | 1 instrument |
| ObjectName | Scientific Instrument |
| Materials | Wood, brass, glass, ivory |
| Dimensions | l 920 x d 44 mm |
| AccessStatus | Open |
| Provenance | This instrument was purchased by Charles Darwin for the Beagle voyage, 1831-1836 and presented to the Royal Society on behalf of his executors |
| URLDescription | Digital version available on The Royal Society Picture Library |
| URL | https://pictures.royalsociety.org/image-rs-12491 |
| https://pictures.royalsociety.org/image-rs-12483 |
| https://pictures.royalsociety.org/image-rs-12481 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8196 | Darwin; Charles Robert (1809 - 1882); naturalist | 1809 - 1882 |