604, 
of alkalies, salts, &c. and combinations 
of ardent spirits, vegetable acids, aro- 
matic oils, sugar, milk, mucilage, &c. 
‘are used for saturation with carbonic 
acid. The gas is obtained by the de- 
composition of whiting, with dilute sul- 
phuric acid, applying the whiting in a 
liquid state, to admit of its introduction 
to the laboratory, iu which the earbonic 
acid is disengaged with facility and clean- 
liness. The solution is exposed in a well- 
tinned copper vessel, under a certain 
pressure for the absorption of fixed air, 
which may be effected without interrup- 
tion to the injection of solution from a 
condensing syringe, or discharge of aéra- 
ted liquor, from a decanting ‘stop-cock, 
so that the bottling may go on continually. 
The piston used is solid and cylindrical. 
It forces upwards, causing the propor- 
tionate supply of liquid matter which is 
injected by it at the same time with the 
carbonic acid, to serve as a lute to the 
collar of leather, already nearly air-tight. 
The valves are placed in the plugs of 
acting stop-cocks, so that if they get out 
of order they may be easily ground air- 
tight again, by withdrawing the plugs; 
in which case the charge may still be 
. preserved in the vessel by means of ano- 
ther set of stop-cocks placed nearer to it. 
The shape of the vessels used is a long 
oval; they are placed on their sides, so 
that ‘the liquid being always in contact 
List of New Publications. 
{Jan. 1, 
with the stopper, no leakage can take 
place, and this shape permits the con- 
tents to be more easily poured out with 
less loss of fixed air. Sometimes the 
neck and mouth of the bottle are so 
formed, that 1t may serve as a drinking- 
glass if necessary. Cork is generally 
used as a stopper, which, from the pres- 
sure, generally existing within the bottle, 
flies out on the string being cut; bnt 
sometimes Mr. II. makes use of eround 
glass and wooden. stoppers. tle satu- 
rates under a pressure of 120 square in- 
ches, which is reduced in part on the Ii- 
quors being bottled. The decantation 
is effected by stopping the mouth of the 
bottle or jar with a perforated cork, lea- 
ther, &c. through which the decanting 
tube passes, so that on opening the cock, 
the aérated liquor rushes into the bottle, 
till resisted by the condensation of the 
atmospheric air it originally contained, 
and a portion of carbonic acid gas 15 ex- 
tricated during the effort. When full, 
the bottle may be withdrawn and stopped | 
with ease, by letting off slowly a small 
portion of the fixed air contained before 
its removal. In some cases the decan- 
ting cock is constructed so as to allow 
the stopper to pass into the bottle, &c. 
previously to its removal from the flat 
air-tight fitting; by which means the en- 
tire pressure may be retained. 
LIST OF NEW PUBLICATIONS IN DECEMBER. 
_* As the List of New Publications, contained in the Monthly Magazine, is the 
“ONLY COMPLETE LIST PUBLISHED, and consequently the only one 
thut can be useful to the Public for Purposes of general. Reference, ut ws requeste 
that Authors and Publishers will continue to communicate Notices of their Werk 
(Post paid), and they will always be faithfully inserted, FREE of EXPENSE 
aa 
AGRICULTURE. 
TREATISE on the Diseases and Manage- 
ment of Sheep, with Introductory Re- 
marks on their Anatomical Structure; and an 
Appendix, containing Documents exhibiting 
the value of the Merino Breed of Sheep, and 
their value in Scotland. By Sir George 
Stewart Mackenzie, Bart. 8vo. 7s. 6d. 
ARTS, FINE. 
A Collection of Portraits, sketched from 
Life, since the year 1795. nae roe 
Dance, R.A. Nos. [V. and V. 41. 4s. each. 
A Letter from the President and a 
of the British Institution, containing the out- 
lines of a Pian for the National Encourage- 
ment of Historical Painting, in the United 
Kingdom. By M. A. Shee, R. A. 3s. 
ARTS AND SCIENCES. 
Every Builder his own Surveyor, or the 
Builder's Vade Mecum. By Richard Jones, 
6s. 
Evening Aniusements for 1810. 
Frend, esq. M.A. 3s. 
The New Cyclopedia. 
XXXVI. 4to. 11. Js. 
BIOGRAPHY. 
The Life of John Philip Kemple, esq. 9s. 64. 
The History of the Political Life of the 
Right Hon. William Pitt. By John Gifford, 
esq. 3 vals. Imperial 4to. 151. 15s. royal 
to. 8l. 8s. or 6 vols. Svo. 41. 4s. 
Memoirs of the Life and Writings of Vice 
tor Alfieri, written by Himself, 2 vols.8vo, 
1s. 
Life 
By Ww. 
By Dr. Rees, Part 
