( 154) 



Here we see the marked effect of a diminution in the concentration 

 of the salt solution. 



TABLE VI. 



Effect of hyper-isotonic solutions of salt. 



Solutions. 



Percentage of leucocytes 

 containing carbon. 



Decrease of the 



phagocytarian 



power. 



NaCl 0.9"/„ 



„ 0.95 



1 



1 1 



1.2 



1.3 



1.4 



1.5 



250 



— X 100 = 34.6% 



293 



875 



95 



802 



105 

 981 



X 100 = 33.5 

 X -100 = 11.84 

 X 100 = 10.8 



— X 100 = 0.7 

 990 ^ 



200 



X 100 = 



— X 100 = 

 150 ^ 



50 



X loo = o 



30/ . 



00.0 



69 



98 



The surprisingly rapid decline of phagocytosis observed in serum 

 of increased concentration (table III) is again clearly demonstrated 

 in this instance. 



Even the slight increase of 0.9 to 1% lowers the phagocytarian 

 power already 60.6 / - Another illustration of this rapid decline is 

 afforded by the observation that in the 1% concentration of Sodium 

 Chloride, the amount of carbon present in the coal containing 

 phagocytes is far less than in those that have stayed in the solution 

 of 0.9°/„. 



Now, by comparing tables VI and III, we see at a glance that, 

 when the experiments were made with a solution of Sodium Chloride 

 of 0.9 %, to which afterwards salt had been added, the decline 

 in the phagocytarian power is more marled than when they are 



