]40 
TO CORRESPONDENTS. 
to the heat of steam in canvas bags ; the wax is then obtained by the action of a screw 
press. This wax is of the third or lowest quality ; to bleach it, it is rasped, rinsed in 
water, and then exposed to the action of the sun and dew for three days. A still 
higher quality is obtained by repeating this operation.”— Times. 
A Remedy in Diphtheria.—Dr. A. de Grand, in a paper published in the ‘Revue 
Therapeutique,’ recommends ice as a specific in cases of diphtheria. Several cases are 
given in which the remedy was perfectly successful. 
BOOKS RECEIVED. 
A Dictionary or Chemistry and the Allied Branches of other Sciences. Founded 
on that of the late Dr. Ure. By Henry Watts, B.A., F.C.S., etc., assisted by emi¬ 
nent contributors. In Four Volumes. Vol. I. Abichite—Conglomerate. London: 
Longman, Green, Longman, Roberts, and Green. 1863. 8vo, pp. 1137. 
The Madras Quarterly Journal of Medical Science. Nos. 10 and 12. Madras: 
Gantz Brothers. London: John W. Davies, 54, Princes Street. Edinburgh: Mac- 
lachlan & Co. Dublin: Fannin & Co. 
Petroleum and its Products : an Account of the History, Origin, Composition, Proper¬ 
ties, Uses, and Commercial Value, etc., of Petroleum; the Methods employed in re¬ 
fining it; and the Properties, Uses, etc., of its Products. By A. Norman Tate, F.C.S., 
etc. London : John W. Davies, 54, Princes Street. Liverpool: H. Greenwood, 32, Castle 
Street. Price 2,?. Gel. 1863. 
TO CORKESPONDENTS. 
A Suburban Chemist is thanked for his letter. The subject had already claimed at¬ 
tention. 
Rocjatus (Chesterfield).—(1) You must obtain, in addition to the book you named, 
Fownes’s ‘ ChemistryBentley’s ‘Manual of Botany;’ and the Latin Pharmacopoeia. 
(2) The examinations of the Pharmaceutical Society are conducted, and certificates of 
qualification given, without reference to the means by which the knowledge required of 
the candidate may have been obtained. 
An Associate (Edinburgh).—The article generally sold under the name of Liquor Ta- 
raxaci , or Fluid Extract of Taraxacum , is that prepared by the addition of spirit to the 
freshly-expressed juice, although an article made by inspissating the juice is sometimes 
sold under the same name. 
C. W. II. (Manchester).—The certificate of examination is, of course, an imperative 
condition only in Government situations. 
Inquirer. —The Latin Pharmacopoeia; Royle’s ‘Materia Medica;’ ‘Pharmaceutical 
Latin Grammar;’ Fownes’s ‘Manual of Chemistry;’ and Bentley’s ‘Manual of Botany.’ 
J. C. (Richmond).— Liquor Taraxaci made by the addition of spirit to the juice ex¬ 
pressed from the root. 
E. W. (Abersychan).— Storm Glass. Vol. ii., page 777. 
A Member.—Show Colours. Vol. iii., pages 94 and 143. 
jDr. W. Bird Herapath is thanked for his communication, which is omitted for want 
of space. 
Erratum. — A Bill for the Prevention of Accidental Poisoning , page 80, for “ Mr. 
Pauli, Mr. Sclater-Booth, and Mr. Walter,” read “ Viscount Raynham and Mr. Wykeham 
Martin.” 
Instructions from Members and Associates respecting the transmission of the 
Journal before the 25th of the month, to Elias Bremhidge, Secretary, 17, 
Bloomsbury Square, W.C. 
Advertisements (not later than the 23rd) to Mr. Churchill, New Burling¬ 
ton Street. Other communications to the Editors, 17, Bloomsbury Square. 
