Enzymic hydrolysis of adenosine phosphates by cobra venom.

We wish to thank Mr G. T. Iles of Belle Vue, Manchester, for supplying us with the sample of python fat used in this investigation, and for the information concerning the animal; also Prof. J. W. Cook, F.R.S., for drawing our attention to the work on bile salts; the University of Glasgow for a scholarship held by one of us (R.P.P.) and Imperial Chemical Industries Ltd., for a grant towards the purchase of apparatus.