| Reference number | MS/525/6/6/2/6 |
| Level | Item |
| Title | 'Tidal mine', note by Joseph Ernest Petavel, The University, Manchester |
| Date | 5 February 1915 |
| Description | Description of a device 'to obtain a mine which will float and travel during the flood tide, and rest at the bottom during the ebb'. |
| Extent | 2p |
| Format | Typescript |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA8267 | Petavel; Sir; Joseph Ernest (1873 - 1936); engineer and physicist | 1873 - 1936 |