Du Mez—The Galenical Oleoresins. 
937 
£ VI Ta&MI 
The two twin cylinders B and C are mounted on the support A 
and are provided with covers 1 and 10. On the support, the 
diaphragm 3 is placed, covered with a straining cloth which is 
held in position by the diaphragm 4 which in turn is fastened 
by the clamp 5. A third diaphragm 6 is used to cover the sub¬ 
stance to be extracted. The two cylinders are united by the 
tube 7 provided with a stop-cock. The lower part of B is also 
provided with a stop-cock at S in order to allow the percolate to 
flow out at 9. The lower section of C is converted into an air 
tight compartment by the cover 11, which is provided with an 
opening and stopper at 12. The parts indicated by 13, 14, 15, 
16, and 17 belong to the suction pump necessary to create a va¬ 
cuum. The suction pump is outside the cylinder and the per¬ 
colate is not allowed to collect underneath the percolator B, but 
is at once pumped in the reservoir C. 
Beindorff 1826 
Mag. f. d. Pharm., 9, p. 185. [Geiger, Hanbuch d. Pharm. 
(1830), p. 142]. 
The cuts represent Beindorff J s modification of the Real 
and Romershausen extraction apparatus. It will be noticed 
that the apparatus in figure 6 is so mounted that it can be tipped 
