The Sun.
London, England, 1829-01-21 00:00:00

T e following, staternentintsat,.'ve think, 'set the doubts of
the most sceptical at rest for sorer.
Mr. flume, the respectable and talented chemist of Long
Acre, who has long been employed by Government in
analysing waters, had two bottles sent to him for
analysatiou, ititE ONE rtLL OF ALL SORTS OF 2NZIMAL
AND VEGETABLE MATZERS IN A SWATE OP DECOMPOSITION,
AND STF.ONGLY H4PREGN 4111 D WWII GIS ; the other, a
bottle which lied contained the same foul ingredients, but
hail been 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
w6.e'the original ingredients peculiar to the water; and
.dissolved in. it " for," he obsories,." there is no water,
however pure. and wholesome, whether from deep wells,
superficial springs, or any other source, that is free from.
saline and ether soluble salts, not at all injurious to
health."
Li the filtered bottle he found only sixteen grains of
substances, which, en exarliinition, proved to be the same
materials peculiar to, and soluhleti, The water in its pri-
mitive state, and perfectly free from the •iiiipubities and
contingent foulness of the water, occasioned principally by
decayed vegetable matters, a'slight impregnation by animal
substances, some carbureted hydrogen or coal gas, and car-.
.bonia acid, gas. Mr. Hume concludes with bearing the
following high testimony to the merits of this discovery:
" After a very ^ireful analysis, I cannot hesitate to pro-
nounce the method-which hag been adopted to filter this
specimen of water Co be meet eifertual, and highly descry-.
log of public encouragement." The tame gentleman, at a
subsequent period, analysed two other bottles; and says,
" the opinion I had forme of this new process for filtering
is fury confirmed." We should add, that the water thus
analysed, ALTHOUGH PURPOSELY STRONGLY IMPREG-
NATED WITH GAS AND OTHER, IMPURITIES, BECAME

CRYITALLISED, AND DESTITUTE OF TASTE AND SMELL.

Thus it is clearly proved, THAT OF 1/1113 FORTY-SIX
GRAINS AND A HALF OF SOLID lA:VITRA ORIGINALLY
PLACED IN THE ROYAL FILTER, ONLY SLXIGEN GRAINS
OF SUBSTANCES PASSED TUROUGII IT; AND WHICH SIX-

TEEN GRAINS ARE PROVED TO BE PECULIAR TO WATER

IN MS I.ItIMITIVE STATE, AND NOT AT ALL DELETERIOUS
TO lIF,ALTII. However much, therefore, the observation of
the Commissioners may apply to all former systems of
filtration, it is greatly to be regretted that, before the close
of their labours, they had not the benefit of the preceding
experiments, and of the following striking testimonials
to the excellence of " The Royal Filter."
Professor Braude, Dr. Clarke, Mr. Brodie, Mr. Keate,
Dr. Scudamore, and 30 other highly eminent and unpre-
judiced medical' men, have each had the Royal Filter
placed in their cisterns, and they all concur in stating
that it renders the most turbid, ftetid water of chrystaline
brilliancy, and free from taste and smell.
It should be observed that the difficulty of getting
pure water is very common in most of the large towns,
and indeed throughout the provinces. The difficulty or
necessity of placing a Filter at this distance is uovvremeved.
Portable ones of all dimensions, capable of filtering from
50 to 500 gallons every 24 hours, have been adapted to
prevent the inconvenience alluded to. T hecxpence is from
30s. to 41. or 5/.

We trust we have said enough to draw general attention
to the merits of a discovery so highly conducive to the
cleanliness, comfort, and health of the inhabitants of this
thickly peopled Metropolis. We shall only add that the
apparatus may be inspected at the Office of the Patantee,
Mr. George Robins, 69, Strand, opposite the Adelphi
Thoatre ; where the public are invited to have ocular de-
monstration of the efficacy of this remedy.

ri-ifIE QUARTERLY REVIEW, No.
LXXVII., WAS PUBLISHED TIIIS DAY.

This day was published inSvo., with tight Plates, price

10g. 6d.
ATREATISE on PRACTICAL SUR-
VEYING and TOPOGRAPHICAL PLAN
DRAWING.

John Murray, Albemarle-street.

This day was published, in 4t0., pries 21. Rs., with a
Portrait of the Author,
JOURNAL-6f an EXPEDITION of DIS-
COVERY in the INTERIOR of AFRICA.
By the late CAPTAIN CLAPPERTON,
With the Journal of Richard Lander, his faithful Servant.
John Murray, Albernarle-mtreet.

NEW PUBLIC SUBSCRIPTION LIBRARY,
1,2, 6, HOLLES-STREET, CAVEYDISH-SQUARE, LONDON.

_ .
THE ADDENDA for 1829, comprising
all the New Publications, British and Foreign, is
now ready, and may be had Gratis on application, together
with the New Terms of the Country Subscription,
arranged so as to render the total expence no more than
the Town Subscription. Books regularly forwarded to
Subscribers to all parts of the United Kingdom.
The Catalogue and Terms to be had of E. Bull, Librarian.

COBBETT and the FRENCH SURGEONS,

We observe in one of the French papers of
Saturday, a curious paragraph, which shows how
little our lively neighbours are acquainted With
the character of a certain degraded portion of
the English press. It is stated that Dr. Lucas,
physician to her Royal Highness the Duchess
of Berry, had brought to the notice of the me-
dical section of the Royal Institute, a paragraph
of an English " journal edited by Cobbett," and
copied into some of the English newspapers, in
which the French surgeons are accused of re-
lieving their overstocked hospitals by converting
their patients into subjects for dissection, after
the fashion of Burke and his gang in Edin-
burgh. The French doctor, in denouncing this
calumny, got into a grave fit of indignation, and,
no doubt, called forth a sympathetic e%pression
of astonishment and fury trom the whole Aca-
demy. After the wonder and uproar had sub-
sided, they unanimously resolved to record their
abhorrence in a proces verbal, and to avenge
the abuse of the liberty of the press by employ-
ing the press itself as an instrument of retaliation.
In short, they formally determined to spread the
contradiction as widely as the calumny ; and we
shall not be surprised to find them advertising in
the English newspapers that French surgeons are
not butchers, and that the hospitals in Paris are
not' shambles of medical assassination. Now,
had these Academicians taken the least pains to
inquire into the character of their calumniator,
and learnt the estimation in which he is held
where he is best known, they might have saved,
for a better occasion, a great deal of virtuous
horror which they have thus thrown away. Had
they known the " comical miscreant" as well as
Lie is known here, they would probably have
been amused with his antics, but they never could
seriously have been offended with his false-
hoods. We beg them, therefore, to recover
their self-possession, and to take no farther no-
tice of the matter. Cobbett only wants to sell
his calumnies as he does his Indian corn, and
both commodities are equally harmless. Nobody
believes what lie says,—nobody can be hurt by
the abuse which he utters ; and though sensible
people on this side of the water sometimes amuse
themselves with reading his vagaries, they would
no more think of answering or contradicting
him, than they would an Ouran-outang, or a
long-armed monkey. If we had not seen our
lively friends in such a state of angry uproar
about a trifle, and labouring under such gross
misapprehensions of our national justice, we
would not have taken the trouble of introducing
to them this Thersites of the English press.—
, Timm