i24 
(Table I). For comparison, our previously recorded observations 
in viiro are appended : — 
Table I 
Arsenic Elstimation Numberof 
Drug 
Cbeiuical Constitution 
if! tnvn 
m vitro 
Experiments 
IB TtW 
AtoxyJ 
AsO/ONa 
\/ 
NH, 
arsenic 
present 
arsenic 
present 
5 
Sodium arsenate 
— 
arsenic* 
absent 
arsenic 
absent 
5 
Acetylated Atoxyl 
1 1 
V/ 
arsenic 
present 
arsenic 
present 
2 
^^\OH 
Benzoylated Atoxyl ( | 
• CeH,. 
arsenic 
present 
arsenic 
present 
2 
Benzoyl-acet}'] 
Atoxyl 
A.,n/ONa 
^^\OH 
0 
N/COCH, 
arsenic 
present 
arsenic 
absent 
2 
Sodium-p-hydroxyl- 
phenyl-arsenate 
OH 
arsenic 
absent 
arsenic 
absent 
2 
