380 
TO CORRESPONDENTS. 
The Half-yearly Abstract of the Medical Sciences, July-December, 1863. 
London: John Churchill and Sons. Edinburgh: Maclachlan and Co. Dublin: 
Fannin and Co. 1864. 
A Manual of Photographic Chemistry, Theoretical and Practical. By T7 Frede¬ 
rick Hardwich. Seventh Edition. Edited by George Dawson, M.A., etc., and Ed¬ 
ward Hadow, F.C.S., etc. London: John Churchill and Sons, New Burlington Street. 
8vo, pp. 594. 1864. 
The Quarterly Journal of Science, No. I. January, 1864. London : John Churchill 
and Sons. Paris : Victor Masson. Leipsic: Ludwig Denicke. (From the Publishers .) 
TO CORRESPONDENTS. 
We beg to direct attention to the fact that two important Acts of Parliament came 
into operation on the 1st of January,—the first, that regulating the condensation of 
hydrochloric acid gas in alkali works; and the second, that relating to fraudulent trade¬ 
marks. 
W. W. (Wimborne).—(1.) Chloric Ether. A solution of chloroform in spirit. The 
degree of miscibility with Avater depends on the proportion of chloroform it contains. 
(2.) Magnesia Carbonas pondcrosa. (3.) Tannate of Quinine. See Vol. I. (1st Series,) 
p. 556. (4.) The simple tincture is intended. 
“ Muscovado—Grape Sugar may be obtained of any operative chemist, but it is 
easily prepared from honey, by washing the latter Avith cold alcohol, which dissolves the 
syrup, leaving the glucose. 
W. J. F. (Birkenhead.)— Plasma. See Vol. NVII. p. 400. 
u An Associate'” (London).— Syrnpus Ferri Superphosphatis. Vol. I. (2nd Series), 
p. 497. 
“ A London Member .”—The cost of the licence for the use of a still is 10s. per 
annum. 
Chemist (NeAvcastle).—The 4 British Pharmacopoeia ’ may now be obtained through 
any bookseller, price 10s. 6d. The smaller copy, at 6s., will, we are informed, be also 
ready early in February. 
F. A. (Sheffield).—Fownes’s 4 Manual of Chemistry,’ and Bentley’s 4 Manual of 
Botany.’ 
M. _P. S. (London).—A new edition of Pereira’s ‘Materia Medica’ is in a forward 
state of preparation. 
44 Crinis ” (Leeds) wishes for a formula for 44 Batchelor’s Hair Dye.” 
44 Quercus.” —The change alluded to is due to the oxidizing agency of the Solution 
of Chlorinated Soda on the Tannin. 
J. M. (North Devon).—Messrs. Smith and Beck, Cornhill. The price would vary 
from 5 to 10 guineas. 
Minor. The Board of Examiners Avill not examine on the new preparations intro¬ 
duced into the ‘British Pharmacopoeia’ until it has been a reasonable time before the 
public. 
“Beta” (Stafford).— Quinine Wine. See Pharm. Journ. Vol. VI. p. 226. A good 
result depends much on the use of a sound Avine. 
A Defaulter. 1. Persons having seceded from the Society may be restored to their 
former status on payment of arrears of subscription, and the registration fee for the 
current year. 2. Those who were Associates of the Society before the 1st July, 1842, 
are privileged to become members (as founders of the Society) without examination. 3. 
Apply to the Secretary and Registrar, 17, Bloomsbury Square, W.C. 
Erratum.—P age 331, line 13, for 44 stretch” read “sketch.” 
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, 17, Bloomsbury Square. 
