1802 J 
acain boiled, and farther refined by the 
accuftomed ebermicdl methods. ‘he pref- 
fure may afier that be repeated, ” And the 
chemical and mechanical procefles may be 
thus alternately employed till the fugar be 
refined to the defired purity. 
The i impure fugar or melafles extruded 
by the preffure, may be either feparately 
uled in diftillaticn, or may be added to 
the more impure folutions of facchatine 
matter which are yet in an earlier ftage of, 
chemical refinement. 
This improvement, the reader will-ob- 
ferve, is the fame with the preflure ap- 
pce in making cheele. eae it not. been 
adopted in the manufacture o of falt? 
It feems to us an improvement ar RO 
fmall value in the refining of fugar; and 
fo much the more valuable for its extreme 
finplicity. 
eR 
MR. BOWDEN’S PATENT for @ MACHINE 
for beating COTTON. 
Mr. ANTHONY Bowpen, of Mellor, 
in the parifh of Glofl>p, Derbythire, re- 
corded on the firft of July 1801, the {pe- 
cification. in a Letter Patent which he has 
obtained to fecure to him for the ufual 
time the exclufive benefit of a machine 
that he has contrived to. abbreviate. the 
labour of beating cotton. 
This machine has at the middle of its 
frame a flake or bed of cordage, on which 
the cotton which is to be beaten and 
cleaned, muft be depofited. -That flake 
or bed is during the operation kept in 
continual movement, by the turning of 
Review of New Mujfical Publications. 
5438 
certain rollers’ ih ic which it immediately 
refts. 
Over the cotton difpofed upon the flake, 
rife arms from acro{s frame at the bottom. 
‘Thefe ayms work in moveable iron Slides. 
Rails fixed to the arms give the requifte 
motions, and are theimfelves moved by 
eranks. At the tops of the arms are 
fixed wooden rollers.’ ‘Thefe rollers com- 
municate their motion to axles in iron 
frames. The axles have each a fockét 
fixed to it. In thofe fockets are by means 
of hoops and fcrews placed beating-ticks, 
by the aétion of which: the cotton on the 
‘flake is beaten’ and cleaned, Leathern- 
fraps, {prings, and flides regulate the 
Movements of the rods. 
An axle. with ten cranks, derives its 
own motion from the impulfe given to the 
pulley at one end of it; and by its revolt 
tions produces all the other movements 
of the machine. ie 
The merit of this invention, confifts 
precifely in its giving anew ditribution 
of mechanical power, fitted to perform an 
Operation in the prepating of cotton for - 
manufagture, which has been hitherto 
done by unabbreviated human labour. Its 
principle is the very fame on which the 
other improved machinery of the cotton- 
‘works is conftruéted. . 
In its ule: two-thirds of the number of 
labourers, and thofe the weakelt inftead of 
the ftrongeft,—children inflead of women 
‘inthe full ftrength,—will execute the fame 
quantity of work, which the whole could 
do in the former methods of beating and 
cleaning cotton. 
‘ e 
REVIEW OF NEW MUSICAL PUBLIC 
ATIONS., 
Volume I. of Clementi’s Selettion of Pra&ical Har- 
mony for the Organ or Pianno forte, containing 
Voluntaries, Fugues, Canons and other Inge- 
nious Pieces by the moh eminent Compofers. 
Tovwbich is pr efixed an Epitome of Counter- 
point by the Editor. 11.15. Clementi and Co. 
fR. CLEMENTI who, as we un- 
deritand, has had the plan of the 
SSeiagt work a confiderable time in con- 
tempiation, ftrongly claims the thanks of 
practitioners of keyed-inftraments in ge- 
neral, -but more efpecially thole of the 
organ, for the clear and mafterly ftyle in 
which he has written and edited the art 
volume of fo requifite and uleful a publi- | 
cation, 
With his Eftome of Counterpoint we 
have been .particularly gratified. The 
precepts are fhort and pertinent, and the 
examples feletted with great judgment. 
In fix pages only is comprized all the 
neceflary intelligence refpecting fimple, 
. fiorid and double counter ‘point, exemplified 
in Canto Fermo, and exhibited in two, 
three and four parts. From his explica- 
tion of the five different kinds of double 
counterpoint, the ftudent in harmony may 
derive much valuable information; and 
the body of contrapuntic compofition by 
which it is fucceeded cannot fail to eluci- 
date his doctrine, and confirm his rules 
to the fatisfaction of the moft ordinary 
mind. 
The exemplars (which are compleat 
movements) occupy no lefy than one hun- 
dred and thirty-nine pages of the volume, 
are felected from the great productions of 
Handel, Agoftini, Eberlin, Kirnberqu, 
4 Az Martin 
