AGRICULTURAL CLASSIFICATION IN THE CENSUS. 493 

observed in the pasteurisation of whole milk at the Kingston 
Dairy School in that Province. Jt was found that when the 
milk was heated to a temperature of 160° for pasteurising 
purposes, the capacity of the milk separator was greater 
than when the milk was dealt with at a temperature of 80° 
and in addition there was a decrease in the amount of 
fat remaining in the separated milk. Experiments showed 
that a separator which dealt with 300 gallons per hour at 80 
degrees left -12 per cent. of fat in the separated milk, while 
at a temperature of 160° the quantity of milk passing 
through the machine could be increased to 330 gallons per 
hour and no trace of fat left in the miik. The fact that the 
capacity of aseparator can be increased or the efficiency of 
an inferior separator improved so that there is no appreciable 
loss of fat is, itis pointed out, a matter ot importance, and the 
value of the butter-fat thus saved would in some creameries 
pay for the installation of a pasteurising plant. 
With regard to the keeping qualities of butter made of 
pasteurised cream, the experience at this school is that it 
will keep far better than the butter churned from raw cream 
and that there is no loss of yield in pasteurising if the cream 
is properly dealt with ; the butter appears fresher and the 
use of preservatives is unnecessary. 
AGRICULTURAL CLASSIFICATION IN THE CENSUS OF 10901. 
The Board of Agriculture think it desirable to bring 
under the notice of agriculturists the following Memo- 
randum, which has been prepared by the Registrar-General 
with reference to the returns to be made of the occupations. 
of persons engaged in agriculture in the approaching Census 
of the population of England and Wales on the 31st day of 
March, 1901. 
Memorandum by the Regtstrar-General. 
The persons engaged on farms are intended to be shown 
in the Census of 1go1 in the following groups :— 
(1) Farmer, grazier. 
(2) Farmer’s son, or other relative, assisting in the work 
ot the farm. 
