72-6 
CORRESPONDENCE. 
A Novel Method of Catching Mice .—A correspondent, in reference to a paragraph on 
this subject in our last number, informs us that he tried the experiment on a cask of 
canary-seed which was infested with mice, and found nine dead mice as the result! 
A. P. S. (Wakefield).—Bimeconate of morphia, for hypodermic injection, according 
to Squire, is prepared by evaporating the “ solution of bimeconate of morphia ” to oue- 
twrntieth of its volume. 
J. S. S. (Marlow).—The method indicated of mixing the ingredients answers well. 
W. J. D. (Portsea).—All the questions of our correspondent are replied to in the 
negative, with the exception of that referring to prescriptions, which require to be 
registered according to the Act; in such cases the name of the person for whom the 
medicine is intended must be entered in the book, as w r ell as the formula. 
W. B. C. (Lincoln).—Eligible to be elected as an Associate. 
T. E. (Dublin).—Yes, but an acquaintance w r ith the new system is expected. 
“ A Registered Chemist .”—Separation of the ingredients in the formula in question 
cannot be avoided. 
./. R. (Aberavon) should apply by letter to the Secretary, 17, Bloomsbury Square, 
who will forward a copy of the rules of the Board of Examiners. 
G. L. N. (Exeter).—The word “Poison” affixed to the article, together with the 
name and address of the seller, is all that is required in such cases. 
W. B .—The subject has been fully considered, and it is found to be impracticable. 
F. C. (Lowestoft).— Yes. 
“ Ext. Carnis ” wishes for a formula for “ Svrupus Ferri et Calc. Hypophosphitis.” 
“ Lucidus ” (Tamworth).— Colours for shoiv bottles, see Vol. III. pp. 94, 143, 192, and 
Yol. X. p. 92. 
“ A Student.”—The Pharmaceutical Latin Grammar. 
P. L. W. (Bye).—“Vermin Killers” are not included in the Act. 
“ An Inquirer .”—N. C. The Preliminary Examination will be required in all cases 
under the new regulations, which will come into operation in October. 
G. S. (Brixton).—Veterinary surgeons are not prevented from using Methylated 
Spirit in their preparations. The licence is required for the sale of, not for keeping Me¬ 
thylated Spirit. 
“ Granurn ” (Manchester).—Gregory’s Powder is made with light Magnesia. : s directed 
in the British Pharmacopoeia for Pulvis Bhei Compositus. Gregory’s Powde.' is some¬ 
times made with heavy Magnesia, and sold as a proprietary article. 
J. G. (Fulham).—The formula referred to is correct. 
Mr. J. Balmer, in reply to many inquiries, wishes to state that his Emplastrum Bella- 
donnse contains a third of its weight of the resinous extract of the root. 
F. H. E. (Sandwich).—The seed forwarded is derived from Curcas purgans. 
J. Y. (Leicester).—(1.) No. (2.) There is a slight difference in composition, arising 
from difference in mode of production. (3.) The sulphate of lime may be dissolved out 
with water and tested. 
C. F. (Huddersfield).—(1.) The former. (2.) Yes, at one part of the process. 
A. P. S. (Sudbury) describes the bursting of a bottle containing hypochloride of 
sulphur. The chloride of sulphur which the preparation contains is subject to decom¬ 
position in contact with air and moisture, acid vapours being formed, and the accident 
probably arose from this cause. 
A. E. I .— (1.) With reference to the examinations, should apply to the Registrar. 
(2.) With reference to the formulae, send the list and we will explain them. 
The Secretary and Registrar desires to intimate that no anonymous commu¬ 
nications, or letters signed with initials only, will be answered. 
Instructions from Members and Associates respecting the transmission of the 
Journal before the 25th of the month, to Elias Bremridge, Secretary, 17, 
Bloomsbury Square, W.C. 
Advertisements (not later than the 23rd) to Messrs. Churchill, New Bur¬ 
lington Street. Other communications to the Editors, Bloomsbury Square. 
