November 19, 1870.] THE PHARMACEUTICAL JOURNAL AND TRANSACTIONS. 
415 
No appearance of crystals are observable however, in 
Tincture of Cascarilla. 
,, Buchu. 
Simple ,, Cinchona. 
,, Nux Vomica. 
Simple „ Rhubarb. 
•except in the case of Tincture of Pellitory, which is as 
yet doubtful. 
I am not prepared to say what the crystals are, but 
the forms of some of them incline me to suspect oxalate 
•of lime. 
Purified Tincture of Opium (Brady and Deane’s form) • 
Aqueous Solution of Opium, after maceration in Ether. 
One of my experiments with opium proved extremely 
interesting. I washed powdered opium with ether, and 
then made an aqueous extract of the residual powder, 
which soon produced on my slide magnificent feather¬ 
like crystals, but without any appearance of the pris¬ 
matic crystals of narcotine, forming an excellent polari- 
scope object. 
Laboratory Notes on Turmeric. 
BY JAMES COOKE. 
Although but a short time has passed since my be¬ 
coming a member of the British Pharmaceutical Con¬ 
ference, yet the conviction that members of a Society 
should all be contributors to the common welfare and 
prosperity, inclines me to send a few lines, even should 
they be only suggestive, through Joseph H. Richardson. 
It is possible that few of the Pharmaceutical Conference 
have prepared or seen Cheirantliine, a crystalline product 
of the wallflower petals. A small portion prepared by 
me some years ago will be sent with this, which may in¬ 
terest some not yet acquainted with it. 
My principal object here is, however, not cheiranthine. 
As brevity on such occasions as the present is impor¬ 
tant, a short communication must suffice. 
Several vegetable products, but little examined as yet, 
have in years past and to the present time yielded in¬ 
teresting results. 
Indications of new substances with basic propei’ties in 
plants, British and foreign, of various Natural Orders, 
may readily bo obtained by curious inquirers. Vegetable 
acicls seem to receive less exact inquiry. 
