Solution Tension and Toxicity in Lipolysis. art: 
TABLE VIII. 
MERCURY. 
M. Reagent. Control. Enzyme. Increase. 
8192 0.00 0.05 0.08 0.03 
4096 0.05 0.13 0.13 0.00 
2048 0.10 0.15 0.15 0.00 
1024 0.20 0.25 0.25 0.00 
Copper. 
4096 0.05 0.08 0.30 0.22 
2048 0.10 0.15 oon 0.10 
1024 0.20 0.20 0.25 0.95 
512 0.40 0.40 0.40 0.00 ** 
LEAD 
4096 0.00 0.10 0.30 0.20 
2048 0.05 0.10 0.30 0.20 * 
1024 0.13 0.20 0.30 at 
512 0.20 0.30 0.30 0.00 *** 
Enzyme, 0.0125 per cent. Incubation period, 17 hours. 40° C. 
In the case of mercury there was some sediment in each prepara- 
tion, and apparently more in the control than in the unboiled. In the © 
case of copper 2048 and 4096 preparations were free from sediment, 
but some was present in .512 and 1024, and apparently more in the 
boiled than in the unboiled solution. In the case of mercury a posi- 
tive precipitation on titration could not be observed. ; 
It will be noted that copper and lead yield practically the same 
figures as in preceding cases. Mercury is far more toxic than any of 
the others so far tried. In both mercury and lead the acidity of the 
control, as compared with that of the plain reagent, seems to be greater 
than in the case of copper. 
Mercury and silver in contemporaneous test. — Since the acidity of 
the plain reagent in the case of both silver and mercury is zero for all 
the concentrations tried, this column is omitted from the tables. 
The silver preparations were free from sediment, while every One 
of the mercury preparations contained a settled precipitate. It is t? 
_ benoted that all the silver controls are neutral. Two of the mercury 
controls are acid in spite of the fact that the plain reagent is neutral. 
Pes Indicates the first appearance of precipitate on titration, and the extra stars 
mean increasing quantity of precipitate. i 
