List of papers passed for publication in the Proceedings R E Billingham, L Brent, P B Medawar FRS, 'Quantitative studies on tissue transplantation immunity. III Actively acquired tolerance.' D Davenport and J A C Nicol, 'Observations on luminescence in sea pens (Pemmatulacea)'. J A Borgers and J A Kitching, 'Reactions of the flagellate Astasia longa in gradients of dissolved carbon dioxide'. Communicated by CFA Pantin, FRS. G Causey and C J Stratmann, 'The nuclein acid content of peripheral nerve in degeneration and activity'. S F Jackson, 'The morphogenesis of avian tendon'. A Hess, 'The fine structure and morphological organisation of non-myelinated nerve fibres'. M K Gaitonde and D Richter, 'The metabolic activity of the proteins of the brain'. G L Brown, FRS, 'The effects of activity on mammalian nerve fibres of low conduction velocity'. p52. July - October 1955