100 - 



sugar, the syrup must not be boiled further than to 

 reach the hook proof. Crystallization lasts 24 hour*;. 

 After this time, the mould is placed in a room at the 

 ordinary temperature, the bottom is unplugged and 

 all the liquid syrup is allowed to run off. When 

 the syrup has ceased running, a saturated solution 

 of sugar in water is emptied on to the surface, say 

 : about a quart for three gallons of the stuff. This 

 solution called liquor traverses the loaf of sugar, 

 washes the crystals and drains off. It is left to drain 

 perfectly, then the sugar thus obtained is dried. 



Animal Charcoal. 



To make the bone black or animal charcoal 

 required for experiments in a small scale, a strong 

 sheet iron pipe is taken, similar to those in use in 

 houses for heating, a fixed bottom is fitted in and a 

 movable cover ; it is filled with broken bones and 

 exposed to the moderate heat of a kiln. When no 

 more thick smoke escapes the operation is finished. 

 The pieces of bone that have become white by being 

 loo much burnt are rejected. The charcoal is re- 

 duced to small pieces, as small as possible by break- 

 ing them. To revivify it, it is allowed to ferment 

 several days, it is washed with hot water and it is 

 reburnt. 



The filter is otherwise constructed as much as 

 possible, on a small scale, in the same plan I men- 

 tioned in the second chapter. 



CONCLUSION. 



Beet root sugar manufacture cannot fail to pros- 

 per in Canada, when established, as it has prospered 



