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One of the interesting oriental drugs is Kamada, consisting of 
the glands and hairs abraded from the surface of a fruit related to 
the castor oil plant. These glands and hairs are very well 
known, but I here show you an illustration of them. 
I present here an illustration of the henbane leaf, one of our 
most important drugs, in order that you may note the great va- 
riety of glandular hairs which it bears. The subject of this drug 
and its adulteration is one of the most interesting that presents 
itself to us at the present time. The drug is extremely variable 
in its percentage of alkaloid, it being most common for it to fail 
to contain the required one twelfth of 1 per cent. There is 
another species of Hyoscyamus (H. muticus), growing in Egypt, 
and forming an immense spreading herb often weighing more 
‘than half a hundred weight. It can be collected in great quan- 
tity and very cheaply. This species often contains from ten to 
fifteen times as much alkaloid as the other. Since this alkaloid is 
not of the same kind, and has not the same me ee ie sities 
as that of the other, there should be no substitu 
matter of fact, however, it has been quite common ae the 
past year to add a quantity of this spurious article to an inferior 
henbane so as to bring up its alkaloidal percentage. The article 
is revealed by its large stellate hairs, and the peculiar convoluted 
walls of its cells, here exhibited. 
The hairs of Digitahs, or fox-glove, look somewhat like those 
it contained the hairs here shown, with their surfaces thickly 
papillose or warty; showing the presence of Stramonium. 
Desirous of checking my work, I aes some of it, as a to 
our chemist, asking him to determ constitue 
reported that it contained a ee eee ate is Fe 
what stramonium contains. Fox-glove, on the other hand, con- 
tains glucosides, but no alkaloid. 
In the same lot of powdered drugs which contained the digi- 
talis last mentioned, there was some stramonium, so labeled, 
which contained such hairs as are here shown and which indicate 
chestnut leaves. It is very rarely that we encounter them in this 
