X-Ray Crystallography of Biological Macromolecules 



Both Bragg and Bunn and especially J. M. Robertson 7 deal in some 

 detail with the Fourier method of obtaining electron densities. About 

 the Patterson method little can be found as yet in text-books. Bunn's 

 book contains a short section on it, but the treatment presented here 

 is based on Patterson's original paper, and on examples of actual 

 structure determinations. 



Received September 1948 



REFERENCES 



1 Porter, A. B. Phil. Mag. 11 (1906) 154 



2 Boyes-Watson, J., Davidson, E. and Perutz, M. F. Proc. Roy. Soc. A 191 



(1947) 83 



3 Patterson, A. L. Z. Kristallogr. 90 (1935) 517 



4 James, R. W. X-Ray Crystallography London (1930) 



5 Bragg, W. L. The Crystalline State London (1933) 



6 Bunn, C. W. Chemical Crystallography Oxford (1945) 



7 Robertson, J. M. X-Ray Analysis and Application of Fourier Series Methods to 



Molecular Structures ; Reports on Progress in Physics, p. 332 London (1937) 

 9 Clews, C. J. B. and Cochran, W. Acta Cryst. 1 (1948) 4 

 9 Llewellyn, F. G., Cox, E. G. and Goodwyn, T. H. /. Chem. Soc. (1937) 883 



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