130 The Chemistry of the Injured Cell 



neutrophil leucocytosis and others to cause neutropenia. He be- 

 lieved these to be globulins or peptides but they have not been fully 

 characterised and it is possible that the active principle was partly 

 bacterial or tissue polysaccharide. 



Thus the chemical basis of polymorph leucocytosis following 

 tissue injury remains very obscure. About the more specialised re- 

 actions of white cells, such as eosinophilia and lymphocytosis, even 

 less is known. 



