376 
CORRESPONDENCE. 
■would T complain of its rules; T ask kindly 
consideration for some of those who are either 
outside the Society, or who can only sub¬ 
scribe themselves as your humble servant, 
An Elected Membee. 
Manchester, November 18th, 1869. 
Would you oblige by giving any informa¬ 
tion you can respecting enclosed queries in 
next Number of your Journal, and oblige an 
M.P.S. ? Valetudinarium. 
Are English pharmaceutical chemists at 
liberty to open chemists* shops in Paris, or 
any of the French watering-places 3 
What are the regulations as to trade at 
Mentone; are there any English chemists 
there ? 
Wo Aid an invalid chemist, going there to 
settle, have any chance of making a liveli¬ 
hood ? 
Are there any hospitals for English on the 
Continent where an English chemist would be 
likely to get an appointment as dispenser, or 
in any other capacity ? 
What is the scale of salaries compared to 
those of England ? 
A. E. J. (Norwich).—In making Un- 
quentum hydargyri nitratis, the heat, which 
is only intended to set up the action, should 
not be continued; in fact, in making large 
quantities, the heat evolved on mixing the 
acid is found to be sufficient. 
“Alpha” (Winton).—SeeVol. IX. (n. s.) 
p. 496. It is rather difficult always to ob¬ 
tain a uniform result. 
The Modified Examination Certificate. 
Communications on this subject have been 
received from A. D. G. (Edinburgh), “ Self 
Glorification” and “Taraxacum” (Louth). 
The Grievance of Apprentices. —Com¬ 
munications have been received from Mr. J. 
Robinson, Mr. J. T. Knight, Mr. V. Fowler, 
Mr. McClelland, J. A., and Mr. C. J. Cann, 
endorsing the opinions already given on this 
subject. 
C. C. C. —We have no recollection of hav¬ 
ing received the communication referred to. 
G. S. (Beaminster).—Dr. Attfield’s £ Phar¬ 
maceutical Chemistry,’ 12s. 6 d., is well 
adapted for the purpose. 
J. C. (Leamington).—The iodide, dissolved 
in alcohol or ether, may be mixed with the oil, 
and then a gentle heat applied. This can only 
be done at the risk of spoiling the oil: it is 
better to give the remedies uncombined. 
V. H.—Belladonna Plaster, B.P. When 
an adhesive margin is ordered, the object is 
to prevent the escape of the plaster beyond 
the margin, and not for the purpose of 
making the plaster adhere to the skin. 
C. W. (Narborough).—All legally quali¬ 
fied medical practitioners are now exempt. 
P. B. (Crondall).— Zinc ethyl is formed, 
together with zinc iodide, when ethyl iodide 
is heated with metallic zinc in a sealed “lass 
tube: 2C 2 H 5 I + Zn 2 = Znl 2 + Zn(C 2 H 5 ) 2 . 
The two products remain combined to¬ 
gether in the form of a white crystalline 
mass, from which the zinc ethyl may be se¬ 
parated by distillation in an atmosphere of 
hydrogen. It is a mobile and very vola¬ 
tile liquid, having a disagreeable odour, 
taking fire instantly on coming in contact 
with the air, and diffusing white fumes of 
zinc oxide. It is decomposed by water with 
violence. Our correspondent should con¬ 
sult any modern manual of chemistry. 
“ Dentist ” (Tamworth). — Messrs. Ash 
and Son, Broad Street, Golden Square, Lon¬ 
don. 
M. P. S. —(1.) Sale of Poisons’ Books. 
Several of these books are mentioned in 
Yol. X. (n. s.) page 254. (2.) We cannot 
supply the formula. 
IV. B. (Eghain).— Syrup of Phosphate of 
Iron and Manganese. Vol. I. (n. s.) page 
288. The syrup should be clear; but as it 
does not keep well, it is better to mix the 
two syrups when required for use. 
“ inquirer ” (Bow) should make applica¬ 
tion before December 31, 1869. 
“Apprentice” (Liverpool).—(1.) In pre¬ 
paring the lotion, first rub up the lac sul- 
phuris with the glycerine, add the carbonate 
of ammonia, previously dissolved with a lit¬ 
tle of the water, and finally the other ingre¬ 
dients. (2.) We have not observed the ob¬ 
jection referred to in this case. 
Mr. G. Sant (Atherstone), in reply to a 
question in last month’s Journal, states that 
all particulars respecting the growing of 
mushrooms will be found in the July num¬ 
ber of the £ Floral World, or Garden Guide’ 
(Groombridge and Sons), price 6 d. 
“ Oxoniensis” (Oxford).—(1.) £ Lindley’s 
School Botany’ would answer the purpose. 
(2.) An acquaintance with both works is 
expected. 
Mr. Joseph Her not (Naples), care of 
Messrs. Evans, Lescher, and Evans, will be 
glad to be informed of the best article for 
polishing zinc door-plates. 
Eeeata.— ££ Dr. C. Browne’s Chlorodvne 
judged Physiologically.” Mr. Dowse re¬ 
quests us to correct the following:— 
1st. Speaking of the action of morphia, it 
is printed stains of blood corpuscles; it 
ought to have been stacis. 
2nd. Concerning belladonna it is printed, 
The fatal termination to poisonous doses of 
this drug is due to coma, not direct, but in¬ 
direct through apulla; it ought to have 
been through apncea. 
3rd. As to treatment: the stomach was 
washed out with sulphate; the word £ zinc ’ 
' is omitted. 
