[Four optical illusion drawings].

Pen and ink drawings showing four different coastal features in the Arctic distorted by the refraction that occurs at low temperatures. See the account of the observations made at Port Bowen in Captain W.E. Parry's journal of his third voyage to find the North-West Passage.

Record details

Item reference: CMP/47/3/7; N1988-7(H) HED01/25
Catalogue section: Manuscript documents acquired singly by the Museum
Level: ITEM
Extent: Sheet: 255 mm x 309 mm
Date made: circa 1824
Creator: Head, Horatio Nelson
Credit: National Maritime Museum, Greenwich, London