Unpublished manuscript, 'On a peculiarity in the structure of the eye of the Balæna mysticetus' by J A [John Atkinson?] Ransome Ransome describes his dissection and anatomical study of four eye specimens from the Balaena mysticetus [bowhead whale]. He discovered that two muscles in the eye enable it to switch from a flat shape like that of fish to a convex one like that of quadrupeds in order to see clearly both underwater and out of water. An ink inscription below the title originally read 'in a letter to Astley Cooper Esq FRS from J A Ransome...', but this was struck out and corrected to 'Communicated by Astley Cooper Esq FRS By J A Ransome'. Graphite corrections and annotations appear throughout. Subject: Zoology Communicated by Astley Cooper. Read to the Royal Society on 9 March 1820. [1819]