21 
cells which yield the guita percha in Dichopsis than to the 
laticiferous vessels of Hevea, Manihot, Sapium, and other 
uphorbiaceous plants. 
To Weiss’ description of the anatomy Barthelat adds somewhat. 
He found that the cortical parenchyma of the young stem con- 
me 
cells in the phloem, and in the petioles both i in and below the 
phloem; while in the leaf-blades they were very plentiful, 
running with the nerves and branc des from them to end in a 
micro extremity under the palisade parenchyma of the upper 
su 
Caoutchouc is thus seen to be present in every part of the plant 
except the wood and the outer layer of parenchyma of the young 
roots. 
We may now leave the anatomy of the plant to quote from the 
paper by MM. Dybowski an m Fron of the economic possibilities 
which Hucommia may possess. ‘The following statements are 
translated from pp. 559- 560. of their paper :— 
“Our attention was called to the similar way in which the 
ormer. 
first on some fresh leaves of a plant €  Eucommia grown in the 
Jardin Colonial. The leaves are 3 t inches long and 1} to 
2 inches wide. They are oval, pointed’ 4 the end, finely dentate, 
in lengt 
elm. Operating upon 20 grammes of dried leaves, we obtained 
0-45 gr. of products soluble in toluene, ein corresponds to a 
return of 2°25 gr. per cent. This € is poor, remembering 
that the fresh leaves contain 70 per ét. of water. The bark is 
full of laticiferous vessels. But the lant which we possess being 
still very young, we have not been able to take any branches 
away for examination 
“A second series of observations was made upon the fruits. 
The fruit is a samara, the length of it being 13-12 inches, ne. the 
width nearly $ inch. Two hundred fruits weigh abou 
14 extraction of matter soluble in Samus has 
given us the following results :—- 
1st me 15 pok ees T gr. soluble in toluene 
2nd 412gr.. , » 
té, 820 gr. fini 30 grammes “of matter, or a ds of 27-34 per 
cent. We worked with fruits not dried. The fruit contains a 
Mert proportion of water, equal to 7*4 per cent. 
produet obtained is of a brown colour with metallic 
reflections on the surface. Plunged into hot water it — 
soft a stretches out in thin flakes like goldbeater's skin, an 
under pressure will take the impress of metal. In cooling it ie 
its suppleness and becomes q uite hard. 
