The Sun.
London, England, 1828-12-20 00:00:00

l'1,1191) TO THU METICOFOLIS.

Unfortunately, at the moment when the Commissioners
were drawing np their Report, the patent for " The Royal
Filter for Cititerna" had not passed through the tedious or-
deal of office, OR IT WILL NOT BE DOUBTED, AFTER BEAD-
ING THE FOLLOWING TESTIMONIALS, THAT I/ MOST HAVE
FOV.MEO AN IMPORTANT AND IIiGHLY SATISFACTORY CON•
CLCSION TO TIIF.IR Lanoti as.—The enhjoined extract from
aProspectus, issned by the Proprietor, WILL DE TEIttIsPID
WITH THE LIVELIEST INTEREST ar ALL WHO CONSIDER
CLEANI,INE4S TO BE ESSENTIAL TO HEALTH, AND TITS
FL LITT' OF UE ELEMENT OF WHICH WE ALE TREATING,

TO ISE NEARLY Of EQUAL IMEURTANCE WITH THE Alit

WE BREATHE:-

" The Royal Filter for Cistwns will he found superior
to all filters hitherto invested, inwonneh ai it not only
POSSRSACH THIS FGWER OP CLARIFYING THE WATER IN A

ERB-EMINENT DEGREE, BUT ALSO THAT OF EOM PLETE
EC RIFICATION, RENDERING THE MOST TORB,ID, STAGNANT,

AND ECEVID WATER, Or A CRTI/TALLINE DRILLIANCr,
DE-rRIVING IT OF EVERT NOYIDITS INGREDIENT, AND, IN
TACT, rRoDrcING INATURE's NEcTAR. IN THE HIGHE6T
TOSsIBLE rERFEcTION ; THAT Z 3 TO SAT, CLEAR AZTH
DENTITUTE OR TASTE AND sIHELL."

Tlse rapidity of the process may be understood by a
single ohtetvation, " THAT NO FART AS THE WATER. Di
SDPPLIED AT THE. TOT DP THE CIVEILE, BO VAST ET WILL
DISCHARGE ITSELF FROM THE BORTOM."
" Bnt where," the reader will naturally exclaim, "ie
the proof of all this to be found ? We must have some-
thing more solid and satisfactory than bare astertioms."—
The fallowing statement must, we erunk, set the doubts of
the most sceptical at rest for erts-.
Mr. Home, the respectable and talented eherniet of Long
Acre, who has long been employed by Government in
aoalyeing waters, had two bottles sent to him fes
analysation; THE ONE FULL OF ALL SORTS Or ANIMAL
AND TEUrrArLE MATTERS IN A STATE OE DECOMPO4/IION,
AND STRONGLY IMPREGNATED Willis GAS; the other, a
bottle which had contaiaed the same foul ingredients, but
had bees purified by the Royal Filter.
In the unfiltered bottle he found, he says, forty-six.
grains and a half of solid matter, of which thirty grains
consisted of impurities, and the remaining sixteen grains
were the original ingredients peculiar to the water, and
dissolved in it : " for," he observes, " there it no water,
however pure and wholesome, whether from deep wells,
superficial springs, or any other source, that is free from
saline and other soluble salts, not at all injurious to
health."
In the filtered bottle he found only sixteen grains of
substances, which, on examination, proved to be the same
materials peculiar to, and soluble in, the water in its pri-
mitive state, and perfectly free from the impurities and
contingent fonlnest of the water, occasioned principally by
decayed vegetable matters, a slight impregnation by animal
substances, some carbnreted hydrogen or coal gas, and car-
bonic acid gas. Mr. Hume concludes with bearing the
following high testimony to the merits of this discovery:
" After a very careful analysis, I cannot hesitate to pro-
nounce the method which has been adopted to filter this
specimen of water to he most effectual, and highly deserv-
ing of public encouragement." The same gentleman, at a
subsequent period, analysed two other bottles, and says,
" the opinion I had formed of this new process foe filtering
is fully confirmed." We should add, that the water thus
analysed, ALTHOUGH PURPOSELY STRONGLY IMPREG-
NATED WITH GAB ANN OTHER IMPURITIES, RECA)IN
CRYSTALLISED, AND DESTITUTE OF TASTE AND SMELL.

Thus it ie clearly proved, THAT OF TUN FORTY-SIN
GRAINS AND A HALF OF SOLID MATTER ORIGINALLY
TLACED IN THE ROYAL FILTER, ONLY SIATEEN GRAINS
OF SUBSTANCES PASSED THROCGII 1T; AND WHICH SIX-

FROM THE GAZETTE OF LAST NIGHT.

Office of Ordnance, Dec. IR, 1828.
Royal Reeimcnt of Artillery.
Captain Tlaomas R. Cookson, from rinattached half-pay,
to lie Second Captain, vice Ord, deceased. Dated
Dec. 5.

Captain and Brevet Major Richard Francie Cleveland
to be Lieutenant-Colonel, vice St. Clair, retired. Dec, 9.

Second Captain the lion. Wm. Arbuthnot to be Cap-
tain, vice Cleveland. Dec. 9.

First Lieut. John Sarni-tem Rich to he Second Captain,
vice Arbuthnot. Dee. 9.

Second Lieut. John Wray Mitchell to be First Lieut.,
vice Rich. Dec. 9.

Commission eigned by the Lord Lieutenant of the East
Riding of the Comity of York, and Town and County
of the Town of Kingston-upon-Hull.
Henry Preston, Esq. to be Deputy Lieutenant. Dec. 7.
Commission in the let Regiment of Royal Surrey Militia,
signed by the Lord Lientenant of the County of Surrey.
Robert Taylor, Esq. to be Captain, vice Simon Taylor,
demised. Dec. 6.