Papers passed for publication [Proceedings] Lists papers passed by the Physiology Committee: J S Foster, FRS and C A Horton, 'Quantitative spectrographic analysis of biological material, II'. S Zuckerman, 'The menstrual cycle of the primates. X. The oestrone-threshold of the uterus of the Rhesus monkey. XI. The part played by oestrogenic hormone in the menstrual cycle'. Communicated by W E Le Gros Clark, FRS. W E Bachman, J W Cook, A Dansi, C D M de Worms, G A D Haslewood, C L Hewett, and Mrs A M Robinson, 'The production of cancer by pure hydrocarbons'. Communicated by E L Kennaway, FRS. H Burrows, W V Mayneoard, J E Roberts, 'Neoplasia following the application of x-rays to imflammatory lesions'. Communicated by E L Kennaway, FRS. J Brooks, 'The action of nitrite on haemoglobin in the absence of oxygen'. Communicated by D Keilin, FRS. W A H Rushton, 'A graphical solution of a differential equation with application to Hill's treatment of nerve excitation'. Communicated by A V Hill FRS. R S Bear, F O Schmidt, and J Z Young, 'The sheath components of the giant nerve fibres of the squid. The untrastructure of nerve axoplasm. Investigations on the protein constituents of nerve axoplasm'. Communicated by E S Goodrich, FRS. M Klein, 'The muncification of the vaginal epithelium in rodents'. Communicated by A S Parkes, FRS. B H Crawford, 'The luminous efficiency of light entering the eye pupil at different points and its relation to brightness threshold measurements'. Communicated by Sir John Parsons, FRS. May 1937