The metabolism of glycine / H.R.V. Arnstein -- The digestion of protein and nitrogenous compounds in ruminants / Margaret I. Chalmers and R.L.M. Synge -- The resolution of racemic [alpha]-amino acids / Jesse P. Greenstein -- Naturally occurring trypsin inhibitors / M. Laskowski and M. Laskowski, Jr. -- The formation, composition, and properties of the keratins / Wilfred H. Ward and Harold P. Lungren -- The molecular structure of simple substances related to proteins / San-Ichiro Mizushima -- Protein-protein interactions / David F. Waugh -- Physicochemical and biological aspects of proteins at interfaces / D.F. Cheesman and J.T. Davies.