Paper, 'The proteids of the seeds of Abrus precatorius (jequirity)' by Sidney [Harris Cox] Martin Martin writes: 'The proteids of the seeds of Abrus, the Indian liquorice, are im­portant physiologically, because they have been shown (by Warden and Waddell) to be possessed of poisonous properties.' Annotations in pencil and ink. Subject: Botany / Toxicology Received 21 April 1887. Read 5 May 1887. Communicated by Edward Albert Sharpey-Schafer. A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'The proteids of the seeds of Abrus precatorius (jequirity)'. 1887