399 
" names refer to the distinguishing character of the fruit which 
"■"'I s «i <"<* first, smooth in the second Th- tm's «v r , 
'm flower and were easily recognised as Afmrif'-s r. t nhit,t „,.| 
" another species of the same genus which has been j„ , u | m ',,';,„, 
'•in the Hong Kong Botanic Gardens for manv vears hm has „„• 
^ yet received a name. I understand from Mr. 'llemslev, keeper 
ot the Kew Herbarium, that it is undescribed and th n'he has \, 
"in hand at Kew/' I Mr. Ili.-msL.-v has now named this -I '></-■//.< 
/^.'f ''< ^ *''"' BxUrtitu lilOC, p. 120.] » The Hw;i Tun,: , .1/, „- 
rttes corf/a/a) is the most valued because all the flowers of the 
( majority of trees produce fruits, from which the oil is made, 
while m the second kind a few flowers only in each cluster are 
m perfect, quite 80 per cent, being male flowers. Whv this kind 
is planted at all I was unable to discover. The trees are raised 
from seed and planted out when about three vears old. They 
u arrive at bearing in five or six years. The nuts are gathered 
"when ripe, pounded up and placed in the usual Chinese oil 
presses. The pressure is applied by wedges, and the oil is 
collected and taken to market in a crude state. 
^ " It does not appear to have been suspected before that wood- 
" <>il was a mixture of the products of two species. A sample of 
seeds of the new Guong Tung have been secured for trial at the 
"Imperial Institute, and if thev yield oil superior in .pialitv to 
the wood-oil of commerce the tree will be tried in the New 
' Territory." 
Professor A. H. Church has called our attention to the following 
paragraph on Chinese wood-oil in C. H. Hall's "The Chemistry of 
Paints and Paint Vehicles," p. 90 .— 
" The odour is very characteristic and stubbornly resists desmic- 
" don, regardless of the manner in which the oil is treated. This 
"admits of its identification when p.vsonr in bur small proportions 
" in varnishes, Arc, regardless of other constituents. Another very 
'interesting property is the instant change int. a jelly-like sub- 
" stance when heated to about 2S;V C. to 300 J C. The material 
" this produces is insoluble in til ordinary solvents, and cannot be 
" melted by further heating." 
In Diplomatic and Consular Reports, Annual Series, No. 8725, 
P- 96 1 1 » Hi), Mr. A. Hosie mentions Sesamum Oil, which is only a 
semi-drying oil, as another oil used as an adulterant of wood-oil. 
periments conducted in the Jodrell Laboratory, Kew, 
^■ith the object of asc> rtainimr whether, I'V -] h"I treatment. :h<- 
period during which ripe fruit may be kept in perfect condition is 
capable of being prolonged. 
The rotting or fermentation of ripe fruit having been shown by 
Pasteur to be due to the presence of living organisms on the 
surface, the object of the research was to ascertain whether by the 
o of these organisms th b xhe J 2| ve 
rise are preventive. The fruits dealt with consisted of ripe 
