- 15 - 
DEY, E. L. (42) 
THS INDiaE!70US IHUGS 01 IIIDIA. Ed. 2, 35? pp. Calcutta. 1896. 
The wood of Picrasma quassloldes , a small tree 
belonging to tho s\i'btropical Himalayas, has been advocated 
as a aubstitute for the true quassia, Pl craena excelsa , of 
the West Indies. The wood might bo enployed as a bitter tonic 
and stomachic in the same way as the imported drug (p. 236). 
DIXON, W. E. (43) 
A MA.MJAL OF PHi^^HAGOLOOy. Ed. 6, 479 pp. London. 1925. 
Among the drugs listed as simple bitters is quassia, 
the wood obtained fron Picraena excel sa . 
DOEROVLIANSia", V. V. (44) 
REPORT OP THS EITTOMOLOGICAL SEClTIOl'T. Report on the work 
of the Kiev station for the control of pests and plants 
of the South-Russian Agricultural Syndicate for 1914. 
Husbandry 1915: 532-539, 564-563. 594-599, 621-626, 655- 
660, 697-702 and 763-766. [in Russian. Abstract in Rev. 
Appl. Ent. (A) 3: 638-641. 1915.] 
Quassia soap, 1 pound in 11 or 12 gallons of water, 
proved less effective against Aphis pomi Degeer than quassia 
soap decoction containing 3 pounds of quassia shavings and 
2 potmds of green soap in 25 gallons of water. 
ENLERS, L. (45) 
UEBER DIE ERIHTTELITUG FRS14DER 3ITTER3T0FPE 'iH DEM 
SIERE, NAI'iSKTLICK DERJENIGSN DER QUASSIA, DES BITTER- 
KLEE' S UHD WEH^?JTH'S. Arch. Pharm. 185: 209-225. 1868. 
The author prepared quassiin from quassia wood by 
extracting with hot water, precipitating with tannic acid, 
removing the tannic acid from the precipitate with lead 
carbonate, and taking up the bitter substance in alcohol. 
The tannic acid-lead carbonate treatment was repeated, the 
resulting alcoholic solution evaporated, water added and 
then lead acetate, which caused a slight precipitate. 
The filtrate was freed of lead with hydrogen sulphide and 
the. filtered liquid warned to remove excess hydrogen 
sulphide. Evaporation gave an amorphous mass, which was 
dissolved in alcohol and water added and evaporated slowly. 
The residue was taken up in chloroform and filtered, the 
solution evaporated, and the residue recrystallized from 
alcohol and water. 
