| RefNo | AP/15/2/2 | 
| Level | Item | 
| Title | Unpublished diagram, orthographic projection of a curve by [William Archibald Cadell] | 
| Date | 11 January 1831 | 
| Description | Diagram showing an orthographic projection of a curve, in this case, the horizon.
  Subject: Mathematics
  Written by Cadell at 65 Charlotte Street, Portland Place [London]. | 
| Extent | 1p | 
| Format | Diagram | 
| PhysicalDescription | Ink on paper | 
| AccessStatus | Open | 
| RelatedRecord | AP/15/2 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA3257 | Cadell; William Archibald (1775 - 1855) | 1775 - 1855 | 
| NA6616 | Roget; Peter Mark (1779 - 1869); physician and philologist | 1779 - 1869 |