MICROMETRIC NUMERATION OF THE BLOOD-CORPUSCLES, 145 
cally is yet obscure. But we may hope that a minute 
study of the state of the blood in the cachexia of cancer and 
syphilis, in pernicious and simple anemia, in chlorosis and 
leucocythemia and in other wasting diseases, may lead to 
an exact knowledge of the pathological changes, revealing 
the causes at work and that this knowledge may form a 
rational basis of treatment. 
VOL, XXI,——-NBW SER, K 
