( 164 ) 



a figure at which, it is shown nuclei- 2, the phagocytosis had been 

 entirely suspended, — a recovery took place in the phagocytarian 

 power to half of ils original amount. 



4. The observations, here made with the phagocytes, correspond 

 with those previously observed in the red corpuscles. 



1. The phagocytes, the same as the red corpuscles, can support 

 a considerable quantity of water (± 60 °/ ) without a single cell 

 being destroyed ; 



2. The modifications produced in the phagocytes by the addition 

 of water, unless they have led to their entire destruction, may, 

 judging from the phagocytarian capacity, be entirely obviated by 

 replacing them in normal scrum. 



5. A heightening of the osmotic concentration of the serum, as 

 well as a lowering of the same, (comp. sub 2) has a very injurious 

 effect on the phagocytosis. It mas obvious that an increase of the 

 osmotic concentration had even a more pronounced deleterious action 

 than the dec reuse at the same ratio. Already an addition of 0.1% NaCl 

 to the serum caused the phagocytarian power to decline 17.3%- 



By the addition of 0.4% NaUl this decrease amounted to 79.2% 

 and by the addition of 0.5% Sod. Chi., the phagocytarian power was 

 reduced to nil; but this considerable loss was but temporary, for 



6. when the cells which had heen damaged by an addition of 

 sodium chloride to the serum, were replaced in their original blood- 

 serum, their phagocytarian capacity was again entirely or partially 

 restored; entirely when only from 0.1% — 0.2% of the substance had 

 been added; partially when a greater amount had been used. 



7. If thus, as shown under 2 and 5, the phagocytarian power 

 is specially impaired by modification of the normal osmotic concen- 

 tralion of the blood-serum, this capacity will be entirely restored 

 as soon as the blood-plasma, principally owing to the activity of 

 the kidneys, has recovered its normal osmotic concentration. The 

 experiments have demonstrated that this recovery is still possible 

 after the agency of the anisotonic serum for 24 hours and more. 



8. Tn solutions of 0.9% NaCl the phagacytarian power 

 is a/most equal to that of serum. It considerably decreases under the 

 action of weaker and stronger solutions of this salt, even more so 

 than in scrum which has been made isosmotic with these salt-solutions. 



