FER—FER 147 
temperature at which it is prepared, as well as from dif- 
ferences in manipulation—consists of mixtures of peroxide, 
protoxide, and sub-carbonate of protoxide of iron, in vari- 
ous proportions. Insoluble in water; soluble in acids, — 
with effervescence. 
Meprcat Prorertizs ann Uses. Tonic—may be given in 
powder, or pills, with an aromatic, dose, grs. v. to grs. 
xxx. Mr. Hutchinson, of Southwell, has found it effi 
cious in tie doloreux. Se ae 
Formule— ‘ * 
No. 1. R Ferri carbonatis precip. grs. "se 
i 3ss 
P. Valerianz, 
Syrupi Zingiberis, QB, 
Make a bolus—tonic. Ras ee 2 
No. 2. KR Ferri carbonatis precip. - 2 
Extract Conii, aa 3j 
Made into 24 pills—2 to be taken twice a day, 
in fluor albus, and scrofula. 
No. 260.—-FERRI sUB-CARBONAS PREPARATUS, E. 
Ferri Carbonas preparatus. U.S. TS 
rust of iron—formerly Rubigo Ferri of Dub. 
Cabinet specimen, Jeff. Coll. No. 293. 
This preparation differs but little from No. 259, except that 
it is less easily borne by the stomach. I think it a sub-car- 
bonate, and not a carbonate; for which reason, I ado: 
the Edinburgh nomenclature, in preference to that of 
the U. S. 
Quatrtizs. Inodorous, of a reddish brown colour, and 
_ styptic taste—soluble in acids, with effervescence, and is, 
like No. 259, Se ee 
Tonic; has been used in ite doloreuz; as an internal and exter-- 
nal application to cancer. Said to be emmenagogue—so it 
is, but by its simple tonic effect—used in fluor albus, where 
there is no febrile action—should be combihed with aro- 
matics, of which ginger is the best. Sirs wea 
Dose, as in No. 259, and increased to 3ss—3j and Zss 
doses; may be given as largely as the stomach will 
bear—to correct its purging effect, which sometimes oc- 
curs, opium should be added. With the preceding, is one 
of the best tonics for the neuruses. ~ 
Formula— 
Ke  Rubigo ferri, (sub-carb. F. psi 
P. Zingiberis, = 
Tinct. Thebaice, (Tr. opii.) gtt. xxx 
Mixed by trituration, and divided into twelve pow-— 
ders—one every two hours, in syrup, or molasses. ee 
