| RefNo | MA/254/42 |
| Previous numbers | MA.254 |
| Level | Item |
| Title | Magnetic and meteorological observations at the Trivandrum Magnetic Observatory, India, by John Caldecott and others |
| Creator | Caldecott; John (1800-1849); British astronomer |
| Coorien; G (fl.1840s); Indian astronomical assistant [?] |
| Itee; A (fl.1840s); Indian astronomical assistant [?] |
| Date | June 1841-March 1842 |
| Description | Graphical curves of daily and monthly means by hour, from observations made at Trivandrum [Thiruvananthapuram], Kerala. Each sheet contains a single month of observations, relating to: tension of vapour, barometer, calculated wet and dry bulb thermometer, vertical force thermometer and magnetometer, horizontal force thermometer and magnetometer, and declination magnetometer.
Each sheet is headed: 'Curves of the monthly means [or daily means] correspnding to each hour...', with the date, place, and longitude and latitude. There are notes by John Caldecott, one initialled [p.9]. Several graphs [p.11, p.13, p.15, p.17] are signed 'Drawn by G. Coorien'; with one [p.19] 'Drawn by A. Itee'. Presumably both were assistants or calculators at the observatory. |
| Extent | 20p. |
| Format | Manuscript |
| PhysicalDescription | Ink on paper. |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA2446 | Caldecott; John (1800 - 1849) | 1800 - 1849 |