| RefNo | PT/52/3/3 |
| Level | Item |
| Title | Plate, chart illustrating local attraction by John Henry Pratt |
| Date | 23 September 1854 |
| Description | Unpublished chart illustrating local attraction over various longitudes and latitudes.
Subject: Geodesy
Published in Philosophical Transactions as 'On the effect of local attraction upon the plumb-line at stations on the English Arc of the Meridian, between Dunnose and Burleigh Moor; and a method computing its amount'.
Written by Pratt at Deep River, Cape of Good Hope [Diep River, Western Cape, South Africa]. Communicated by Prof [James] Challis. Received by the Royal Society on 5 June 1855. Read 21 June 181 |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink chart on paper |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1854.0101 |
| DOI: 10.1098/rstl.1856.0006 |
| RelatedRecord | RR/3/219 |
| RR/3/220 |
| PT/52/3 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8010 | Pratt; John Henry (1809 - 1871) | 1809 - 1871 |
| NA7554 | Challis; James (1803 - 1882); astronomer | 1803 - 1882 |