34: 
PHARMACEUTICAL NOTICES. 
known by the solution becoming colorless. This solution is im- 
mediately filtered, while yet hot, on to the sugar (previously put 
into a convenient wide-mouthed bottle, upon the side of which a 
pint measure has been marked,) and sufficient water added to the 
filter to make a pint of the syrup. If the sugar does not dissolve 
readily, a gentle heat may be applied. The Syrup thus obtained 
contains one drachm of the Iodide of Zinc in each fluid ounce. It 
is perfectly clear and colorless in appearance, and has a strong 
styptic and peculiar metallic taste. 
Castilloes Powders. 
An excellent diet for invalids, in cases of indigestion, chronic 
dysentery, &c, known as " Castillon's Powders," has been con- 
siderably employed by the medical profession. Although a some- 
what popular article, we are not aware that the formula has been 
given to the public in any of our journals, and accordingly present 
it here : 
ft. Pulv. Sago. . - - siv. 
" Salep. - - - siv. 
" Tragacanth. - - 
" Testae Praep. - - 5i. 
The ingredients to be well mixed, and to be divided into twelve 
powders. 
A small quantity of cochineal has generally been added to the 
mixture for the purpose of coloring it ; but it is conceived to be 
preferable without it. 
For use, each powder is to be boiled with a pint of milk ; which 
may be sweetened and flavored to suit the taste. 
Dr. Jackson's Pectoral Syrup. 
A prescription of Prof. Samuel Jackson of Philadelphia, fami- 
liarly known as his <c Pectoral Syrup," has obtained a considerable 
reputation from its beneficial action in cases of cough, colds, &c. 
We believe the prescription was originally given to Mr. E. Durand, 
but as the Syrup has for some time been a standing preparation 
with many of our druggists, we have thought that a published 
formula would be acceptable, both for the purpose of giving its 
benefit to those who may not be familiar with its composition, and 
