CALCIUM HYPOCHLORITE 137 
of such a product allows a false sense of security. Hooker, in the book 
mentioned above, presents a table which contains much useful infor- 
mation. It appears here as Table VIII and is based on 30 per cent 
bleach. 
TaBLe VIII 
SHOWING STRENGTH OF SOLUTIONS OF CALCIUM HYPOCHLORITE 
(After Hooker, 1913) 
Pounds Drops Bleach 
Bleach per Parts Bleach | Parts Chlorine} Grains Bleach | Grains Avail- | Solution, 2 Per 
1,000,000 | per 1,000,000 | per 1,000,000 | per Gallon | 2ble Chlorme | Cent or 3 Lb 
Gallons Parts Water Parts Water Water per Gallon m eee cote 
ater. 
2 24 08 104 005 25 
4. 48 16 .028 009 50 
6 72 24 .042 014 iy £3) 
8 96 32 .056 019 1.00 
10 1 20 40 .070 023 1 25 
12 1 44 48 084 028 1.50 
14 1 68 56 098 033 1.75 
16 1 92 64. .112 037 2.00 
18 2 16 12 .126 042 2.25 
20 2 40 .80 .140 047 2.50 
22 2 64 .88 154 051 2.75 
24. 2 88 .96 . 168 056 3.00 
26 3 12 1.04 . 182 .O61 3.25 
28 3 36 1.12 .196 .065 3 50. 
30 3 60 1.20 210 .070 38 75 
The objections to chloride of lime are important. It takes the 
color out and exerts great reactivity with organic matter. When it is 
used in the presence of large amounts of organic matter, a sufficient 
amount should be used to satisfy the requirements of it and leave 
enough left over for destroying the bacteria. This is difficult to 
determine. 
Labarraque’s Solution. This is a solution of chloride of lime con- 
taining 2.4 per cent of available chlorine. 
Dakin-Carrel Solution. This solution has been found to be of great 
value in the treatment of wounds. Different methods may be used 
in the preparation of this solution. Below are two formule: 
Formula No. 1. Dissolve 140 gms. of sodium carbonate in 10 liters 
of distilled water and add 200 gms. of calcium hypochlorite. Shake 
this solution thoroughly and allow the sediment to settle. After sedi- 
