ON SPECIFIC THERAPEUTICS. 31 



field from which new light will be shed on 

 human pathology and clinical medicine. Suc- 

 cessful work in this field must proceed on a 

 broad basis. One would have first to make 

 exact observations regarding a large number of 

 functions of human blood serum, and then one 

 would have to investigate systematically in 

 cases of all sorts of diseases, anomalies of 

 nutrition, etc., the causes of departure from the 

 normal, as to whether these result from the 

 failure of certain functions, or from the existence 

 of new functions acting under pathological con- 

 ditions. Thus, without doubt, would be detected 

 differences in the sum of the functions of the 

 cell, and this section of the physiology and 

 pathology of the blood might be named the 

 blood canon. 



I firmly believe that by extensive research we 

 shall find that there exist great differences, the 

 result of biological laws, and these will permit 

 us to come to correct conclusions as to the 

 origin of certain substances in the cell, and to 

 apply these conclusions to diagnosis and thera- 

 peutics. Of course, the united action of many 

 observers in many institutes, and the closest 

 relations between clinical and laboratory work, 

 are needful in order that progress may be made 



