136 H. G. SMITH. 
purposes, at all events with our present known methods of separa- 
tion. Whether its insolubility in chloroform can be utilized to 
separate it successfully from “eudesmin,” which body is readily 
soluble in that liquid, is a matter for further investigation. 
MeETHOD oF PREPARATION. 
The fine powder of this kino was treated with a small quantity 
of water and placed in separator for the attempted determination 
of ‘‘eudesmin,” as fully described under that substance, in the 
paper already referred to. The ether was more reddish-brown 
than was the case with the kino of #. hemiphloia, and when dis- 
tilled to dryness did not deposit tufts of crystals as was the case 
in that of the latter kino under the same condition. When tested 
for the characteristic colour reactions of “eudesmin” it was found 
that that body was absent, and that apparently the whole consisted 
of Aromadendrin, giving the same colour reactions as that body 
before described. The residue after the ether had been distilled 
off was more difficult to crystallize out than “eudesmin,” the 
solution requiring to be cooled considerably before it could be 
obtained in any quantity, and it also required to stand some hours 
when only the smallest possible quantity or absolute alcohol had 
been used for solution. When these crystals are filtered off, they 
cannot be washed with rectified spirit as they are readily soluble 
in that liquid, but may be washed once with absolute alcohol ; oF 
dried as much as possible on a porous slab, recrystallized from 
boiling absolute alcohol, dried again on the slab, and then crystal- 
lized twice from boiling water. When the substance is dissolved 
in boiling water, it becomes a jelly-like mass on cooling, the fine 
acicular crystals holding the water mechanically. The water is 
filtered off as much as possible, and the crystalline mass placed on 
a porous slab to dry. When thus prepared the substance is quite 
white and has the appearance of paper pulp, the interlaced hair- 
like crystals giving it a peculiar matted appearance, having 4 
silky lustre, and totally distinct in physical appearance from 
‘“eudesmin.” When these two bodies are prepared under like 
conditions they are both white, but “eudesmin” has the appear 
