508 The Trials of Cr6am Separators at Donsaster. 
took twenty-one minutes to dismantle and clean, and two 
minutes to put together again ; the bowl was rather difficult to 
clean well. A good deal of vibration was noticed in the 
running. A point in favour was the facility for elevating the 
Fig. 1. — Section of the " Victoria " Power Separator.' 
skim-milk after passing from the separator, this being a matter 
of importance in large dairies. On the other hand this was the 
only machine to produce any excessive frothiness of cream and 
skim-milk. 
No. 1032, The ''Alexandra," No. 2, price 49/.— This 
machine separated about 144^ gallons of milk per hour, though 
stated to be able to deal with 200 gallons hourly. The power 
required was 1 102 h.p., and in this respect it came out best of all, 
and only inferior to the " Leviathan " in the matter of efficiency. 
The revolutions were 7,000 per minute, and temperature of 
