AGRICULTURAL mAGAZlHG, 
COLOMBO. 
Added as a Swpplmmt Monthly to the " TROPICAL AGRICULTURIST." 
The following 
for October : — 
pages include the Contents of the Agricultural Magazine 
Vol. VI.] 
OCTOBEE, 1894. 
[No. 4. 
MILK ANALYSES. 
R. Fream, in his text-book on Agri- 
culture (one of the latest and 
most complete works on the sub- 
ject, and published under the 
authority of the Royal Agricul- 
tural Society of England) gives the following as 
the percentage composition of whole milk in 
Great Britain : — 
W ater 
Albuminoids (Casein albumin). . 
Milk sugar 
Fat . . . . ■; . . ,. , . . 
Ash • . . 
In June, 1888, Mr. Cochran, the city analyst, 
communicated to the local press the results of an 
investigation into the composition of Colombo 
milk. We quote the following from his report : — 
" It was necessary, in the first place, to obtain 
samples of milk known to be genuine, in order to 
ascertain between what limits the different consti- 
tuents might be expected to vary. Analyses Nos. 1 
to 5 represent the composition of genuine milk 
from cows fed upon more than one kind of food. 
Besides the chemical analysis, I have given, 
in tabular form, a few other particulars in con- 
87 '0 
4 0 
4-6 
37 
0-7 
ueutiou with these 
sampleB of genuine 
milk. 
No. 1. 
No. 2. 
No. 3. 
Specific gravity . . 
1039 
1030 
1032 
Fat 
297 
2-11 
5 57 
Sugar and Casein . . 
7 49 
7-73 
8-66 
Salts 
•60 
•76 
■77 
Total solids 
11-06 
10-60 
15-00 
Water 
88-94 
89-40 
85-00 
100-00 
100-00 
100-00 
Solids-not-fat 
8-09 
8-49 
943 
Age of calf , , 
4 mos. 
7 mos. 
1 mo. 
Food of cow , . 
grass, 
grass, 
grass 
cotton 
cotton 
poonae 
seed, 
seed, 
poonae. 
bailed rice. 
Specific gravity 
Fat 
Sugar and Casein 
Salts 
Total solids 
Water 
Solids-not-fat 
Age of calf 
Food of cow 
No. 4. 
No. 5. 
No. 6. 
1033 
1036 
1032 
362 
lol 
4-55 
8-66 
8-66 
8-95 
•80 
•80 
■73 
13-08 
1097 
14-23 
86 -W 
8903 
85-77 
100 00 
100-00 
100-00 
9-46 
9:46 
9-68 
4 mos. 
2 mos. 
4 mos. 
grass, 
grass, 
grass only. 
#ot. seed, 
cotton 
poonae, 
seed, 
rice. 
poonae. 
The following is the average composition of 
these six samples : — 
Specific Gravity 
1-032 
Fat 
3-39 
Sugar and Casein . . 
834 
Salts .. 
•74 
Total Solids 
12-47 
Water 
87-53 
100-00 
Solids-not-fat 
9-08 
No. 3 was richest in fat, and was indeed found 
to be too rich for a youDg child, with whom 
No. 2 agreed very well. The milk from the cow 
reported to be fed exclusively on grass was 
only second to No. 3 in respect of fat, while 
it was highest of all in non-fatty-solids. No. 5 
was very poor in fat. This was demonstrated 
both by the chemical determination and micros- 
copical examination ; nevertheless, it was a 
genuine sample of cow's milk, and had a normal 
amount of solids-not-fat. The amount of fat in 
cow's milk being subject to wide variation, it 
is customary to judge of the amount of water 
that has been added to an otherwise genuine 
sample ot milk, by t lie amount of solids present 
minus tire fat. In England 9 J per cent, was 
for a time regarded as the minimum quantity 
