II. M. JOPE and J. R. P. O'BRIEN 



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Figure 5. Adult Hh from 

 ammonium sulphate. 



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Figure 6. Adult Hb from 

 ammonium sulphate. 



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Figure 7. Foetal HbO., from 

 ammonium sulphate. 



Figure 8. Foetal Hh from 

 ammonium sulphate. 



