- 6 - 
lattersfield and ^lartin (120), in their work on evaluation of roten- 
cne-containicg plants in 1935, reported determinations of moisture "by these 
■two methods. The xylene-distillation method was used in.I.'alaya, while the 
same samples were analysed for moisture in 3ngl-:xnd.'oy drying at lOOP C. 
Higher results v/ere- ©"btained in ?'alaya, but the 'author? at tri'cuted the dif- 
ference to greater absorption of atmospheric- rr^oistva'a there.- = 
Again in 1976 C-eorgi and Teik {c§) stated thatimoisture was best 
determined by the xylene-distillation metrxd, but could elso be det5rm:ined 
by drying to constant weight at lOC^ 3. 
Koolhaas ajnd Meijer^ in 1937, in a report on.-the analysis of a sample 
.of derris root by various laboratories throughout the world, gave the fol- 
lowing results f^r moist'ore as oetermined by. the several laboratories: 
........ Moisture 
Laboratory ■ Method •- • ■■ Pj^rcent 
A— United States Department of Airriculture Dried at 103-104° C.. .5.1 
(Jones) ... . -fer •<; .hours .. -^ , ,. 
B — Department of Agricultiare , Straits Set- Xylene distillation • .11.3 
tlementf, and Federated I'alay States (3-eorgi) 
C — Commercial J'useum of the Colonial 
Institute, iUnsterdam (i^owaan). 
D — The Cooper Tec^'^xical Bureau, London 
(Cahn and Boa,m) 
E— Iiothsijneted Experimental Station (Tat- 
ter sfield and Martin; 
F~Seil,. Putt, and Eusby, New York (Seil) 
G — Caeser and Lorentz, Halle-Saale, Germany 
H — Diethelm, Ltd, , Singapore 
I — Laooratcry for Chemical Research, Bui ten- 
2,ojgv Java (Koolhaas and Ivlei.jer) constant weight 
Xylene distillation 
10.4 
Dried at 100° C 
9,4 
Dried at 100° C . 
9.3 
Ivot knoivn 
- 9.9 
Over calcium chloride 
5.1 
for 2 days 
Dried ---t 85° 0. 
7.2 
Dried at 105° C,' 
9.6 
2 See footnote 1 
