263 ON KALMIA LATIFOLIA. 
The ether, after the separation of the tannin, was allowed 
to evaporate spontaneously : an extract was obtained 
which was re-dissolved in alcohol to separate the resin, and 
ehlorophylle ; no fixed oil could be separated, although the 
extract left by the ether had a greasy feel, and had the 
appearance of a small portion of oil existing in it. 
8th. The leaves were treated in the manner directed by 
the U. S. P., for obtaining veratria : the product was a red- 
dish brown extract, having a slightly bitter, sweet, and as- 
tringent taste, but did not possess any properties that would 
lead to the supposition of its possessing the peculiar virtues 
of the plant. 
9th. The method for obtaining quinia, lobelina, sangui- 
narina, and various alkaloids, and proximate principles 
were tried, but without any satisfactory results. 
10th. Two ounces of the leaves were treated with half a 
pint of sulphuric ether, the tannin separated, and the ether 
allowed to evaporate. The extract was treated with warm 
alcohol, which dissolved the resin and ehlorophylle and left 
a white flaky mass, which, when thrown upon a filter, 
washed with cold alcohol, and dried, was found to be in- 
sipid, and was insoluble in water and cold alcohol, partially 
soluble in boiling alcohol, and readily soluble in ether. It 
was inflammable and burned with a white smoky flame, 
proving by its properties to be wax. 
11th. Four ounces of the dry leaves in powder were 
distilled in a glass retort with sufficient water to cover them. 
The distilled water was returned upon an additional four 
ounces of the leaves and again distilled ; the water possessed 
the odour of the leaves, but was perfectly clear. It was 
then saturated with chloride of sodium and allowed to stand 
for several days, but not the slightest lactescence was ob- 
servable. 
12th. Two pounds of the fresh leaves were introduced 
