The Sun.
London, England, 1817-08-20 00:00:00

PAHL] AM F,NTA Y PAPERS.

PAPERS IitLATING li, DU'T'IES,
froin yesterdriel'sSt,N.)
(No. 3.—Nlessrs. Macintosh hod Co.)
To the Right'f'lon. the Lords 'Comaiissioffervof hii Majesty's
'Treasury.

.1E:RollIAL of GEORGE NIACINTOCI and Co.
uf GLogow,

Shrweth,

That I:ll,aline Sfilti are of great anJ indispriisahle use in
df thr most important arts and MaUnfactures carried on
in Great lit itain ; aril that kind now chiefly usell,",:tviwn by
the. natne of pot or pearl-ash, is at present alMost entirely
imported. front North America, ;trui the northern parts of
Earopt, with tvhich countries our intei:cuvirse is fiat& to in-
terruption ; ,and very large stuns ate annually paid by Great
Britain to foreigners for this article.

The alkaline Suit called Stida, is at least of equally eriica-
eons use with pot ash foi- every purpose for which that
. •
suh-
statnce is employed, and it is WCII4IIUWII that a great part of
rock S:lt consists of soda in a neutralized state; therefore,

an effectual and economical prooess for the decomposition
of rock Salt, in order to obtain its soda in a separrete and ap-
it.ircable'shape, has hitherto formed a desideratum io chemis-
try; and many processes, mare or less perfect, have been had
remorse to In this view, viz. to Sri)3l-3.6011 of the soda
of rock Salt front its other constituent. base, niuriactie
acid or spirits of Salt. But the heavy .duty to .winch
Salt is ' sethject has hitherto Proved an insurowunt-
al.le harrier to any advantage at, all important having
been derived,' either to the country or. to individuals,
front the industry and ingenuity bestoWed in the Wont .; ue
v,rtheleSS,' the great magnitude .of the object has oil a fvw
ccea:iiiits induced the Legislattire to grant special indulgence
mdiyidnals, for e.aniple, to the Manufacturers of glass,
and to Messrs. Lush anti ('o. at the Walker Colliery, near
Newcastle; on Tyne, who are all permitted the use of rock'
Stilt or rock Brine, duty free, for the separation of Soda. And
Stall ly, lib very enlightened policy, a similar. privilege has
bveh eXtended wherever ruck or common Salt is employed
for the shfarallim of its ha,e, the aturiatic acid, fur the pur-
pose of fileaching. '
Willi Memorialists beg leave.to• represent that they hail:
ei.,c(,vercd procusse,A cif certain effect and simple
fur niAing stilt from rock Salt ; for the ettrrving on
of which tlio hold facilities of Otflimited extent; till which
must rentaiii dormant to themselveS as well as to the country-,
if they stmll trot ho exempted front the operation of the exist-
ing .Salt Laws. They therefure humbly flatter theinselves,_
that the same spirit of liberal policy which has•granted to the
nial;er of oxymoriatic 'acid the free natural use of rock or
coffinion Salt, for the separation of one of its bases for the
Service of the bleacher, may with perfect propriety he ex-
tended to the Memorialists, who have in view 1 he converting
to such important national purpOses• the other, equally or
more useful base, the soda which it contains.
• Your Memorialists het permission further to state, that the
rc ry first stage of their process is of such nature at to do away
the possibility of 'the rock Salt employed in it, being after-
:wards recovered or brought hack to the state apprunible•to
culinary purposes, or the other uses to which common Salt is
i-mployed ; • and if the pra, er of their petition shall he favour-
ably entertained, they of eimtse understand that they shall
be laid .unifel such restrictions as may be deemed necessary
and e::pe dicta fur the security of the revenue. They are
too e. vet willing to disclose their whole processes to Doctors
1,v0w,,;,,t, and 'l'. Thompson of London, and Davies Giddy,
I.:so. M. I'. or any other confidential persons the Commis-
sioners of Excise oily appoint-, in order turemoveeverydoubt.
cif her as to the fair views and identions of the Memorialists,
hr la the important national advantages to he derived front
theo tic, ag granted the ',raver of their petition.
"Alvinorialists therefore humbly pray that they may he
ralle wed the use of rock Salt, duty free, for the above pm--
pos.•, such regulations as your Lordships and Parini-,
recut may deem
,necessary for the protection of the
revenue.

And your Memurialiati will ever prix, &e. •
(Signed) GEO. AIACINTOSII and Co.

(so. 9.—Messrs. Macintosb and Co.)
COMMON SALT.

ADDITIon to the Me:quit:AL of Gtotto'n MAcINTosu and Co.
of Glasgow.
• Although the Memorialists would greatly prefer being,
allowed the free use of rock or common S.ilt at their Works
already established, where their decomposing material is
foot:A, anti where they could make mineral alkali to great.
extent ; yet if that privilege cannot he granted•thern, they
woa.dbuoilily crave being pet mitted to evaporate salt water,
Conitrioed with Their dreomposing materials on the sca"chat,
its such rnaiintr that no coomion Salt shall be found during;their 'opirations, or at least ' remain in a state' possibleto
tie applied to any of the uses of common Salt which pays
ditty,
In order to secure the revenue in the most complete man-
ner, the 'Memorialists would-propose, instead-of the iron pan
at present in use for making common Salt, to employ ooly
vaulted stone cisterns, or kind of reverberatory furnaces, in-
wilted by themselves, fur evaporation. having the fire placed
at one cod. from whence heat is communicated to the Surface
of the- fluid or -materials to be evaporated front the flame,
sinoke and heated air passing 'avidly over it ; thus effecting
the required evaporation.
' Into these evaparatioz cisterns their decomposing' aterials
th;dl i e tegnlarly introduced, in the proportioh of
to=ts. for every 1,000 grlions of sea Water employed. It'is
ine'vou( t h:s mode must of itself prevent the possibility
Of ft and, especially when it is corisidered.that the whole mats
ittust ht addition he necessatily'contaminated by all,the smoke
and dust of [ix tire passing over and upon the contents of
the r:r";lace: Still, in order to render this assurance doubly
sure, the Memorialists would propose that lbs. of
vitriol (sulphate copper) which is a most active and
but' of all others perhaps.the most easily de--
tected h) the taste, shoult: be. thrown into their evaporating
resets once or twice a day.
If the prayer of the Mernorialist's petition shall be favour-
-111;;:- c.Jertained, they of course would expect to he allowed
to remove the saline'mass produced in the way above speci-
fied, to 1::oir present established works, why re the process-of
converting iL into mitotal alkali would be completed.
[Here follows -a Sketch of the Evaporating Reverberatory
rtlfilaCC4

(No. 10.—Mr. Thomas Farley.)
To Sir Thomas Bernard, Bt.
, near Woree;ter, Aprii.
Sir,-,4 am glad it is iri toy power to give you the informa-
tion you desite in tour letter of the 4th instant.
-It iiniy he about forty years past, that I tool( to Croome in
My Oivii v.,;„:gons. not a,h-ss quantity of foul Salt than from
'thirty to torty tons, at times, and an Otticer was used to go
with it to see it spread on the laud from Droltwich' and paid
Its. pee day ; their salaries at that time being 101.
'FT annum. Many farmer- made use of it to my !inowledge
umre than fifty years past. I hare made nse of it myself on my
owl; lam's, and someti,,,,,, „I „
.ye it to my tenants, Irvin twenty
to tlnrty toils in a time, anti' I it ter frequently observed they
have mixed it with soil limo ditelle,, &c. er this, I remem-
ber there was an order came, that no "foul Salt should be
taken away without soot tieing mixed yin It it. 'When I first
.used it. myself, I laid it ,00 thick on the gtound, and destroy-
ed ill,. gra, .; but the next year the was very great, that
it regnired knoWledged in making use of
also remember
-when ii Was Sold to persons making bay-ricks, to spread about
to permit its heating.
further information in my power, it will at all times
'give Me p!e,lStird to con-min-mate; myself and family have
been in the Salt TradLfor a'eentury. When the roads were
bu bad, it was evnveyed rin horseback from I:ioitwich to Vi;Lir-
rester, and theft by the Severn to Gloucester, Bristol, &c. &c.
I ant, Sir,
• - roar most obedient Servant,
cSigned). THOS. I' ABBEY.