| Reference number | MA/89 |
| Previous numbers | MA.89 |
| Level | File |
| Title | Meteorological observations at Zevenboompjes and Kooltjesberg, Netherlands, by [Gerrit Moll and Albertus van Beek?] |
| Creator | Moll; Gerrit (1785-1838); Dutch scientist and mathematician |
| Beek; Albertus van (fl 1820s); Dutch merchant |
| Date | 25-28 June 1823 |
| Description | Daily meteorological observations made at short intervals, in support of experiments on the velocity of sound, with a regional chart of distance measurements, triangulated from landmarks visible for the two observing stations. |
| Extent | 1 file; 2 items |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |