Letter, from Martin Lister to Henry Oldenburg, dated at York Further observations of the caecum in the digestive system of different animals; analysis of Nehemiah Grew's work 'Idea of a Phytological History' concerning vessels or veins in plants Copy of letter see EL/L5/57 Transcription in 'The correspondence of Henry Oldenburg', edited and translated by A Rupert Hall & Marie Boas Hall, vol 10, p 93 26 July 1673