| Reference number | EL/A |
| Level | SubSeries |
| Title | Early Letters: A, letters in natural philosophy from correspondents with surname starting 'A' |
| Date | 1664-1736 |
| Description | Original letters and related material on natural philosophy, including illustrative items. Sent to the Royal Society for discussion at its meetings and, from 1665, for possible publication in its journal 'Philosophical Transactions'. |
| Extent | 1 |
| Format | Manuscript |
| Physical description | Quarter bound in vellum, green cloth boards. Spine marked 'A'. Green cloth slip-case. |
| Dimensions | 402x265mm. |
| Arrangement | Grouped by correspondents having surnames starting with the same letter, in this case 'A'; then chronologically within the volume |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Access conditions | No photocopying |