CLINICAL OBSERVATIONS 347 



which possibly resembles the molecules of the natural 

 auxetics. 1 



The fact that the cell-proliferation of healing is 

 caused by chemical agents contained in the soluble 

 remains of dead tissues will, we confidently believe, 

 be the means of solution of many problems which at 

 present confront the investigator in pathology and 

 perhaps in physiology also. It is a fact about which 

 there can be no doubt whatever. 



1 The formula of azur dye (Cent. f. Bakteriologie, Bd. xxix., 1901) is: 



S0 2 

 (CH 3 ) 2 N V /\ /\ /\ y>N(CH,) 2 .Cl 



