VARIETIES. 
89 
ORANGE. 
No. 1. — Dissolve bichromate of potash in water until the required tint is 
produced. 
No. 2. — The same as the last, but adding some oil of vitriol or hydrochlo- 
ric acid. 
PINK. 
No. 1. — -Dissolve 3 i j of zaffre in ovj of hydrochloric acid, filter, add solu- 
tion of carbonate of ammonia in excess j then add f^j of liquor potass®, and 
dilute with water, to produce the required color. 
No. 2. — Nitrate of cobalt maybe used, with carbonate of ammonia, in the 
same way as the last. 
PURPLE. 
No. 1. — Sulphate of copper lj, carbonate of ammonia gjss, water Oijss. 
No. 2.- — The last color, with a small quantity of the Pink No. 1. 
RED. 
No. 1. — Macerate powdered cochineal in spirit of hartshorn, and dilute it 
with water. 
No.. 2. — Dissolve carmine in solution of ammonia, and dilute it with 
water. 
No. 3.: — Wash the best madder two or three times with, cold water, then 
macerate it in solution of carbonate of ammonia, filter the solution, and dilute 
it with water. 
No. 4.-*r-Dissolve madder lake in solution of carbonate of ammonia. 
VIOLET. 
Ammonio-sulphate of copper, diluted with water, and enough ot the pink 
color No. 1 to produce the required tint. 
YELLOW. 
Biohromate ofpotash 3vj, carbonate of potash ^iv, water §xvj. 
Pharmaceutical Journal August 1, 1850. 
Syrupus Iodidi Ferri.. By Mr. Tizier, Apothecary.— As the King and 
Queen's College of Physicians in Ireland have introduced this valuable the- 
rapeutic agent into their newly established formulary, I would be glad to 
record a few practical points of interest attached to its preparation, for the 
purpose of simplifying and completing the process, especially as they ap- 
pear to have been overlooked in the details of every prescribed formula 
since its first introduction into notice by Dupasquier. 
The new Dublin phaimacopaeia directs " to introduce the Iodine, iron and 
water, into a glass flask, and apply a moderate heat until the solution loses its 
red color." Now, as the great success of the first part of the process depends 
on the rapidity with which it is conducted, without any unnecessary exposure 
to the air (but what cannot be avoided) until a neutral solution be affected, 
there is evidently considerable time lost, and danger of decomposition in- 
8* 
