614 The Trials of Cream Separators at Boncaster. 
the temperature of separation 96° to 100° Falir. As regards 
separation, this machine showed the best result, and that an 
extraordinarily good one, for no less than 98-3 per cent, of the 
butter-fat in the whole-milk Avere removed, and the very low 
percentage of '068 left in the skim-milk. This is the best 
result obtained up to now in trials. The loss was low, the 
machine nearly emptying itself. The thickness of cream could 
be regulated well, though not so well as with the Danish 
machine. On the other hand the cream and skim-milk were 
decidedly frothy, a point not noticeable in the case of any of the 
other machines. Dismantling and cleaning occupied twelve 
minutes, and setting up again half a minute, the machine being 
fairly easy to clean. The speed was got up by an ingenious train 
of wheels of the sun-and-planet type. 
No. 1033, The Alexandra" liio. 7, price 21?. 12s. 6cZ.— This 
machine separated 33^ gallons of milk in the hour, though stated 
to be able to do 65 gallons. The power required was "17 horse- 
power, making the " Alexandra," with the " AVindsor " machine, 
the worst in this respect, and thus very different to the power 
machine of corresponding type. Skim-milk came in three 
minutes, and cream in four minutes after starting. The number 
of revolutions of the handle was 38 to 42, and the temperature 
of separation 86° to 92° Fahr. The separation was good, and 
though only fourth in order of merit, less than -^^ per cent. 
(•096) butter-fat was left in the skim-milk, and 97"8 per cent, 
of the total butter-fat in the whole-milk was removed. This 
was the simplest machine to dismantle, clean, and set up again, 
the first two operations occupying 13 minutes, and the last three- 
quarters of a minute. The cleaning was very thoi'oughly done, 
this not being the case with all the machines. Although stated 
to be able to produce thin or thick cream as desired, there was 
some defect in the machine, as it was not able to regulate this 
at all. 
No. 1236, The "5a%," price 12?. 10,9.-13 gallons per hour 
were separated by this machine, 15 gallons being its stated 
capacity. The power required was '06 horse-power, but in the 
matter of efficiency the result was the worst of the seven com- 
peting machines. The skim-milk came in one minute, and the 
cream in two minutes after starting ; the number of revolutions 
of the handle was 48 per minute, the temperature of separation 
88° Fahr. The separation was most effectual, being next best 
to that of the " Victoria" ; 98'2 per cent, of the butter-fat was 
removed from the whole-milk, and the very low percentage of 
•075 of fat was left in the skim-milk. The power of regulating 
the thickness of cream was inferior, and only a slight alteratiou 
