50 The Volume of the Blood and its Significance [Feb. 13, 



If they fall below this, moreover, there is no production of new 

 corpuscles. 



In the later stages of the war gum-saline was largely used in the 

 British, American, and French Armies, and is reported to have saved 

 many lives. Unfortunately, if too long a time is allowed to elapse 

 before treatment, nothing avails, not even transfusion of blood. 

 Hence the importance of the early use of intravenous injection, and 

 also of removal of the injured tissue by operation. As the war 

 progressed, these procedures were, therefore, pushed more and more 

 forward to the battle area, and with more and more favourable 

 results. 



[AY. M. B.] 



