Letter, from Martin Lister to Henry Oldenburg, dated at York Signed autograph Observations of veins from transverse cuts of plants; discovery of the membrane of these veins; observations of the motion of liquid in plant veins and that there are similarities between plants and animals in this respect Transcription in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 9, p 397 Printed in 'Philosophical Transactions', vol 7, no 90, p 5132 8 January 1672