Notes on papers passed for publication Lists papers passed for publication in the Proceedings, including papers by K T Achayn and T P Hilditch, FRS, 'A study of the component glycerides of cow and buffalo milk fats with reference to the possible mechanism of their production during lactation'; Sir Cyril Hinshelwood, FRS and S Jackson, 'The stability of D-arabinose adaptation of Bact lactis aerogenes'. Papers passed for publication in the Philosophical Transactions: M Abercrombie, 'The effects of antero-posterior reversal of the lengths of the primitive streak in the chick', communicated by G R de Beer, FRS. 30 November 1949