Spectra and Redox Potentials of Metalloporphyrins and Haemoproteins 

 by J. E. Falk and D. D. Perrin 56 



Discussion 



Correlations between Structure and Physical Properties . . .71 



Models for Haemoproteins .....•• 74 



Some New Compounds of Haems with Bases 



byJ. E. Falk 74 



Carbon Monoxidc-Pyridinc Complexes with Haems 



by J. H.Wang 76 



Equilibrium Constants for Reactions of Haems with Ligands 



by J. N. Phillips 79 



Modification of the Secondary Structure of Haemoprotein Molecules 



by K. Kaziro and K. Tsushima 80 



Discussion 



The Haem-Binding Groups in Haemoproteins . . . . .94 



The Nature of Haem-Binding, and the Bohr Effect 



byj.H. Wang and Y.N. Chiu 94 



Models for Linked Ionizations in Haemoproteins 



by P. George, G. I. H. Hanania, D. H. Irvine and N, Wade . .96 



On the Stability of Oxyhaemoglobin 



by J. H. Wang . . , 98 



Discussion 



Oxygenation of Haemoglobin . . . . . . .102 



Ferrihaemoprotein Hydroxides: A Correlation between Magnetic and 

 Spectroscopic Properties 

 by P. George, J. Beetlestone and J. S, Griffith . . .105 

 Discussion 



Spin States and Spectra of Haemoproteins . . . . . 1 39 

 The Electronic Origins of the Spectra 

 by J. S. Griffith and P. George 139 



Analysis and Interpretation of Absorption Spectra of Haemin 

 Chromoproteins 

 by D. L. Drabkin 142 



Discussion 



Interpretation of Absorption Spectra of Haemoproteins . . .170 



The Bands in the Region of 830 and 280 m/i . . . . .171 



