1329 
This table brings the unexpected result, the phagoeytosis is greatest 
where the slightest! amount of oxygen was present. 
We see namely that in the NaCl-solution treated with nitrogen 
rae 28-—19 
the phagocytosis is about ES > 100 = 47°/, greater than in the 
e 
one treated with air; and in the latter again EE Cae < 100 == 46°/, 
greater than in the one treated with oxygen. 
A repetition of the experiment when only the NaCl solutions 
were compared which had been treated with nitrogen and with 
oxygen gave a similar result. 
TABEE RN 
Effect of nitrogen and of oxygen on phagocytosis. 
In the fluid treated with nitrogen 22.2 0/, 
” ” ” ” ” oxygen 1 7 = 6 » 
” ” ” ” ” nitrogen 29 4 4 ” 
” „ ” ” ” oxygen 23 ee 4 ” 
In the following series of experiments NaCl-solutions which had 
not been boiled out have been compared ; some had been treated 
with nitrogen, others had not. This treatment consisted in N-gas 
(from ‘a metal cylinder) being led for '/, hour into the bottle with 
NaCl-solution of 0.9°/, whilst the fluid was shaken every 5 minutes 
with the gas on the top of it. 
It goes without saying that just as in the experiments of Tables 
I and IL a complete expulsion of oxygen could not be expected, 
but this was not desired. If this had been aimed at, the suspension 
which was added afterwards, should also have been treated with N. 
TABLE IL 
Effect of nitrogen on phagocytosis. 
The fluid is not It is treated with 
treated nitrogen 
20 0/, 27.9 0/, 
Mt | ede He 
kras | zene 
16.6 , | gn 
