desire to make a profit by ow — 
produced in order that private growers of Cinchona may be enabled to — 
take full advantage of he per ocess, and that a permanent Bear inthe _ 
the dorar. and the TA are now 
price of quinine may en 
Cotman MACAULAY, | 
Secretary to the Government of Bengal. 
Method of se sp of the Alkaloids from Cinchona Bark by Cold : 
Oil as us e Government Cinchona Factory in Sikkim. 
n order ar = oil pe speedily and effectually act on the Cinchona 
bark, the latter is reduced to a very fine powder by means of Carter’ 
2. A hundred parts of the finely-powered bark are then set aside 1 
Eo mixed with Aper parts of commercial caustic soda, 500 parts of water, and. 
= mixture compused of one part of fusel oil to four parts 
soda, or caustic soda may be Rr s omitted, and 15 parts of slaked _ 
lime may be used instead of it. The caustic da is dissolved in the | 
water and mixed with the bark. Then the oil is added, and the whole is - 
e thoroughly intermixed in an agitating vessel. Should lime be - 
it is mixed in fine powder with the dry t bark before : adding the 
wate and oil. 
3. The agitating vessels in use at Mun ngpoo are barrels. with winge 
pete revolving in them vertically, and with taps on the sides 
drawing of the fluids. ‘Tho first stern is carried on for four 
and then the v i er s * RA " An doa idi 
i 18 nvpe mansit vitii it£o > the oil is As 
. off in the same way, rashod as before in the Tenis 
