, 1873-03-22

." by this means prevent fermentation and
" with this is prevented any approach to
+" emission of suIphuretted hydrogen.
" And SO complete in both cases is this
&" result, that the deposit with repeated ad-
" diti0ns may remain in the pail, or iron
" tank, or dry brick vault, into which it
d" falls, in the same innoxious state for
{" weeks or months Or it may be imme-
{" diately removed from the chamber with
" out o~tfensiveness or injury, and deposi-
" ted in a shed for drying. And when euf-
" iciently dry it may in that state be safe
ely transported to any distance, and hand
d" ed over to the gardener or farmer-and
&" that either in the Ioamy valley or the
"rocky soil of the mountain-as a valua-
" Bile manure. And after countless expe-
g riments and observations during ten
" years, l feel quite confident that through
" out the several stages of this process the
" rattlesnake' will iniure no one. For he
:" has not only lost his rattle by deodori-
i" z%ation, but, by absorption, by the entire
q" absence Of fermentation, aud by the
" most minute mechanical and chemical
" disintegration, he has either been strapg-
s. led in his birth or torn into ten thousand
uLOlilS' ANON; w lIG QOCS 0i' IAOllCSbOu III
" his letter set against all this7 First, he
g gives Won Pettenkofer's opinion, which,
g even if resting on a better foundation, is,
" strange to say, quite irrelevant to the
-" subject against which it is adduced.
" Won Pettenkoter says | cannot see my
1" way towards recommending the disiniec-
d" ton Of privies with earth and peat
but TO DISINFECT PRIVIES AND
"CESS-POOLS is NO PART OF THE
"DRY EARTH SYSTEM. Its great OBJ
8" jcct IS not 10 dSintcct Ju! to supcrSedc those
" denominations, and the equal illumination of
"Ho scrcr. But if the opinion be thus
F." irrelevant, SO must be that which DR..
-" ROlleston grounds on it, respecting the
" locaIization and diffusion of typhoid fever.
And equally irrelevant are his remarks
d" on the comparative dangers Of the con-
" taminatod well and the despatched privy.
-" Now even if the question were doubtful
" as to these, the prevention Of the conta-
elimination of wells would be a desirable
" object. And this the Dry Earth system
g effects. At the same time it obviates
8" the otfensiveness of the despatched
" priyies.' l scarcely need remark on
" Baron Liebig's conjectural system of the
removal of sewage by water as placed
Gin competition with the Dry Earth sys-
" TEN now in so many hundred places sue
" cessfully established. And against DR..
-" Rolleston's FIVE experiments in his labo-
&" ratory several times repeated, whatever
may be their scientific value, / am con-
" tent to set the five years. experience of
" the Dry Earth system throughout the
" whole of British India. Surely, if DIR.
" Rolleston's approximations be just, we
" ought ere this to have heard of outbreaks
" of cholera or fever in jails with 700 and
=" even 1900 inmates, in which this sys-
tenn during those FIVE years has been in
" full operation. 1 have heard of none.
=" cannot ask for space to remark on the
" difficulties which Dr.. RoIleston expresses
" on the working of a system, with which
" either in its fuIness or it's details he seems
to be SO imperfectly acquainted. Iwould,
e in conclusion, express my surprise that
the only extract given from DR.. Mouat's
g Report on the Jails of the Lower Pro-
" vinees of India should be that which is.