496 
NOTICES TO CORRESPONDENTS. 
“ Delta ” (Wolverhampton).—We are unable to give the information required. 
Paper- Filtering. —A correspondent (Linlithgow), with reference to an article on this 
subject in the January number, observes :—A very simple, and for many practical pur- 
poses, a very satisfactory plan, occurred to me lately, and I find it work remarkably 
well. I do not allow the paper to touch the glass at all, or as little as possible ; and 
this is about all that can be done for the perfecting of a paper filter. This is managed 
by introducing into the filter a coil of thin wire, formed into a cone roughly corre¬ 
sponding to the inside of the filter. I say roughly , because were it too nicely done, 
the wire might lie close to the glass. Iron wire does well enough for many things, but 
silver, platinum, or any other metal may be substituted. I tried a sort of cage with 
upright ribs, these allow the paper to clap close to the glass. Very neat “ filter-holders” 
could be made on this principle, and I hope to see them shortly for sale. 
A. G. P. (Longton).—Certainly not. 
J. B. Smith (Dulwich).—(A.) Inquire of Bailliere and Co., 219, Regent Street. 
(D.) The same. (B.) Probably not, seeing that we have already an abundance of 
books on chemistry in English. (C.) Inquire of Dr. Redwood, Dr. Odling, or Pro¬ 
fessor Frankland. 
E. AT. (Apothecaries’Hall).—(1.) “All poisons:” those mentioned in the schedule 
are intended. (2.) Of course, in selling any poisons not included in the schedule, all 
reasonable precaution should be used. (3.) “ Cantharides ” does not, according to the 
Act, include the preparations of cantharides. 
W. P. (Upper Norwood).—We imagine the article referred to would be included. 
Mr. E. G. Carrington (Bakewell) gives the following as a simple way of making 
aq. menth. pip., which he thinks answers as well as the Pharmacopoeia process by dis¬ 
tillation :—Magnes. Carb. 4 drms., 01. Menth. Pip. Ang. 45 mns., Aq. destill. 4 oz. 
Pour the oil of peppermint on the magnesia, and rub up with a portion of the water. 
Transfer to a paper filter, and add gradually the remainder of the water until the whole 
has passed through. 
“ Pharmaceutist ” (Nuneaton) and Mr. W. Price (Birmingham) are thanked for their 
communications. 
G. M. (Southampton).—The practice complained of is clearly illegal. 
X. Y. (France).—The provision applies only to this country. 
“ Inquirer" (Dartford).—(1) see Vol. IX. (N.S.) p. 496; (2) not necessarily ; (3) we 
know of no means of doing it. 
“ A Correspondent^ —Syrup of phosphate of iron and quinine with strychnia. See 
Yol. X. (N.S.) p. 111. 
Liquor Ferri Perchloridi Fortior. —The phenomena alluded to by a “ Registered Stu¬ 
dent,” who refers to the bursting of a bottle containing the above-named solution, were, 
no doubt, due to the fact that, in making the solution, the decomposition of the nitric 
acid and evolution of nitrous fumes had not been completely effected. 
“ li. IS —Having passed the Modified Examination, and been registered as a Chemist 
and Druggist, a man will be eligible for admission to the Society as an Associate. Read 
attentively Section 20 of the new Pharmacy Act. 
“ Walker ” Holborn.—(1.) We are not aware that a new edition of the work is con¬ 
templated. (2.) Yes. 
Scroggins , Giles (Bishopwearmouth).—You will find coloured drawings of the plants 
referred to in Churchill’s ‘Medical Botany ’ and in Woodville’s ‘Medical Botany.’ Both 
works may be seen in the Library of the Pharmaceutical Society. 
R. S. P .— (Ilkeston).—The articles mentioned can be sold only by persons registered 
under the Act. 
A Correspondent suggests that it would be a great boon to students if some enter¬ 
prising firm would publish coloured drawings of the seven plants required to be recog¬ 
nized at the Modified Examination. 
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. 
