| Collection | GB 0231 University of Aberdeen, Special Collections |
| Level | Item |
| Ref No | MS 2131/5/I/13 |
| Alt Ref No | MS.2131.1 (13) |
| Title | 'A solid Angle is the mutual Inclination of three or more plains which meet in one Point.' |
| Date | 18th century |
| Description | 'A solid Angle is the mutual Inclination of three or more plains which meet in one Point.' 2 pp. [MS.2131.1 (13)] |
| Access Status | Open |