Letter from John Newport Langley, on a paper 'Contributions to our knowledge of the connexion between chemical constitution, physiological action, and antagonism' by Thomas Lauder Brunton and John Theodore Cash to the Secretary of the Royal Society When he initially read the paper, it did not occur to him that 'the methods employed were insufficient'. He cannot remember much else of his report, and offers to read the paper again, if needed. Subject: Physiology [Published in Philosophical Transactions, 1884]. 6 October 1883