590 
On a New Method of Testing Milk. 
ditious and simple manner whether new or skim-milk has been 
watered. 
Two other samples of milk, one bought in August in milk- 
shops in Tichborne Court and the other in Clapham Common, 
on analysis gave the following results : — 
Composition of Two Samples of Milk. 
No. 1. 
Glaiiham 
Common. 
No. 2. 
Tichborne 
Court. 
Water 
Fat 
87-05 
4- 01 
3-19 
5- 01 
•74 
90-17 
3-16 
2- 31 
3- 67 
•69 
100-00 
100-00 
Specific gravity at 23° C 
Percentage of cream on standing"! 
-516 
1-0.32 
11 
•377 
1^024 
7 
Feser's lactoscope indicated : — 
Percentage of butter-fat .. 
per cent. 
3i 
per cent. 
n 
In the case of the sample No. 1, Feser's indications were 
somewhat low, and nearer the mark in the case of the milk 
bought in Tichborne Court, which, it will be seen from the 
preceding analysis, Avas watered. Both Feser's lactoscope and 
the specific gravity test also showed this quite plainly. 
Mixed with 10, 20, and 30 per cent, of added water, the 
milk bought at Clapham Common showed when tested with 
Feser's lactoscope — 
The Milk bought at Clapham Common 
mixed with 
10 Per Cent, 
of added 
Water. 
20 Per Cent, 
of added 
Water. ' 
30 Per Cent, 
of added 
Water. 
per cent. 
2f to 3 
per cent. 
2J 
per cent. 
The specific gravity of tlieso milks at 23° Cl 
1-030 
10 
1-027 
0 
1-0245 
9 
The milk bought in Tichborne Court, watered and tested 
