| Reference number | HS/6/254 |
| Level | Item |
| Title | Letter, from Augustus De Morgan to Sir John Herschel, dated at 7 Camden St. |
| Creator | Morgan; Augustus de (1806-1871); British mathematician; logician; Professor of Mathematics at University College London |
| Date | 22 May 1849 |
| Description | Autograph letter signed by sender. Sends extracts from book by Mr. Hopkins on the solar system. Has his own theories on the Augustan calendar proved to his own mind. No authority for giving the name Saras to the period of 223 lunations. |
| Language | English |
| Extent | 4pp |
| Format | Manuscript |
| Place origin | 7 Camden St., London |
| Origin coordinates | 51.541, -0.1433 |
| Digital images | View item on Science in the Making |
| Access status | Open |
| URL description | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel7001
|
Fellows associated with this archive
| Code | Name | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); astronomer | 1792 - 1871 |