256 
TO CORRESPONDENTS. 
Persons having seceded from the Society may be restored to their former status on 
payment of arrears of subscription and the registration fee of the current year. 
Those who were Associates before the 1st of July, 1842, are privileged (as Founders 
of the Society) to become Members without examination. 
Full price will be given for the following numbers of the Journal: July, 1864, July, 1865. 
M. J. (Sunderland).—See any text-book of Chemistry. 
“ A Member .”—There is no law to exempt chemists from the public duties referred to. 
X. Y. K. —(1) In the examinations the British Pharmacopoeia of 1867 will be used, 
and of course an acquaintance with the notation therein adopted will be required. (2) No. 
(3) Not for a year or more. 
J. B. —The labels in question are not, we believe, liable to the Patent Medicine Stamp 
Duty, but as the interpretation of the law is somewhat uncertain, it would be better to 
submit the labels to the authorities at Somerset House. 
M. P. S. (Manchester).—Yes. 
J. P. (Sunderland).—Liddell’s 4 Latin Dictionary.’ 
“Nihil” (Leeds).—Apply to Mr. Silverlock, 17, Earl Street, Blackfriars. 
“ Viator ” (Manchester).—No. See vol. viii. (2nd series), p. 287 and p. 349. 
H. W. S. (Sandwich).— 4 Pharmaceutical Latin Grammar.’ 
44 Alpha ” (Greenwich).—(1) There is no duty on pepper, but a licence for its sale is 
still required. (2) Cayenne does not come under this licence. 
D. T. (Leeds).—The apparatus for generating Ozone, and patented by Mr. Beanes, 
was made by Mr. Ladd, Beak Street, Regent Street: we are not aware that any descrip¬ 
tion of the apparatus has been published. 
W. M. (Grantham).—Equal parts of spirit of wine and water does not constitute 44 proof 
spirit,” and its use, where spirit of a definite strength is ordered, would not be justifiable. 
T. W. S. (Selby).— Gnaphalium uliginosum. 
Botanicus (Southampton).—Bentley’s 4 Manual of Botany,’ price 12s. 6c?.; Fownes’s 
4 Manual of Chemistry.’ 
M. P. S. (Derbyshire).—The specimen sent is insufficient for identification. 
W. C. (Lincoln).—(1.) Leptandrin is obtained from the root of Leptandra virginica , 
a plant of the Natural Order Scrophulariaceoe , and a native of North America. As com¬ 
monly sold, it is in the form of a blackish, shining powder. It is principally used to pro¬ 
mote the secretion of bile. (2.) Yes; an edition is in course of preparation, but it will not 
be published till January, 1869. 
A. P. S. (Norwich).—A new edition will be published about May, 1868. Bentley’s 
‘Manual of Botany,’ price 12s. 6c?.; Pereira’s ‘Manual of Materia Medica and Thera¬ 
peutics,’ price 21s., by Farre, Bentley, and YVarington. 
44 Chemicus ” (Glasgow).— Purified essential oil of almonds. See vol. vi. (2nd series), 
p. 407, and vol. viii. p. 325. 
44 Inquirer ” (Kendal).—Soluble either in a solution of borax or in spirit. 
J. P. C. (Honiton).—It is not usual to filter after the addition of the potash ; it must 
depend on circumstances. See Bowman’s 4 Medical Chemistry.’ 
“Perth.” — Chlorodyne. Vol. iii. (2nd series) p. 584. 
Mr. J. Middleton (Middlesborough) and Mr. W. Betts (Gosport) are thanked for 
their communications. 
Mistakes through Inadvertence. —Mr. Tebbutt (Kilburn) proposes the following pre¬ 
caution :— 
By taking an india-rubber ring, of suitable size, and tying it into a knot in the centre, 
and attaching one half of the divided ring to the stopper and the other to the neck of 
the bottle, the apparatus is complete; and it will be found that the stopper cannot be 
taken out without a decided effort. 
Instructions from Members and Associates respecting the transmission of the 
Journal before the 25th of the month, to Elias Bremrldge, 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. 
