| Reference number | EL |
| Level | Series |
| Title | 'Early letters': letters from correspondents in natural philosophy sent to the Royal Society and its Fellows |
| Date | 1651-1740 |
| 1642 |
| 1613 |
| Description | Incoming letters to the Royal Society via its secretaries, officers and Fellows, on natural philosophy topics. Generally from the period 1660-1740, but with smaller collections of earlier material These papers form the raw material from which the Royal Society's Letter Books and Register Books were compiled and many were published in the 'Philosophical Transactions' of the Royal Society. The series also contains English translations of foreign language letters, for example from the Dutch of Antoni van Leeuewenhoek. Other document formats, including printed material, have been preserved within this sequence. |
| Language | English |
| French |
| Latin |
| Dutch |
| Extent | 38 volumes containing 4,390 items |
| Physical description | Bound volumes |
| Arrangement | Volumes are arranged alphabetically by author, and chronologically within author letter groups, with a single supplementary volume of letters essentially to Robert Boyle from Henry Oldenburg and John Beale. This order was published in 1840 by Shuckard, who numbered each letter sequentially in his catalogue. The numbering system used here is the item number assigned to individual letters within each volume and not Shuckard's system. A few letters were added after 1840. |
| Finding aids | Alphabetical list of correspondents published in W E Shuckard, 'Catalogues of the miscellaneous manuscripts and of the manuscript letters in the possession of the Royal Society' (London: Royal Society, 1840), with dates. |
| Access status | Open |
| Access conditions | No photocopying |
| Related material | Royal Society Letter Books, Register Books and Classified Papers. |
| Copies | Letters have been microfilmed by University Publications of America (UPA) |
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