|Title||"Observations on the dip of the magnetic needle made in a voyage to Madras and from there to Suez", by Alexander Dalrymple|
|Description||Subtitled "with observations of the variation and a journal of the voyage".|
"The dipping needle belongs to Mr Cavendish".
Letter appears to be enclosing further observations which are no longer with the letter.
Fellows associated with this archive
|NA8193||Dalrymple; Alexander (1737 - 1808)||1737 - 1808|