New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1857-08-12

Got. I,as fund that klo,ramne sss Ier Du'h
more thar two pounds. The hs. koSranus vas
called puetrical pound, and divided into sixteen
sauces sc. The metsical measures called by e'd
names and divided into tvslfhs, were thus iced y
% people, but az :he division ito tenihs wa 1'sTHea
On al measures by tho SIDE OF tbs Cher the r'ng ses
Grafton learned both waysOf counting IL io'0,
ordinance forbade tie u tho Old pames ano o.
eli Jiy;.;ons except those in tent hundrsdths' "s''
fo public or legal paper' snt the change vas 60
that three nronths efer footIulee or ponnis were
scarcely eeen or heard Of The netrica! sye'em y
eomp,ete except in ore respect: the circle ia stu
divided into 800, the degree into 90 minutes, &C.
The attempt OF the Committee 10 baye the circle lVo,
The degree 100 minutes, &c proved abortive' The
consequences Of such o change would have oeon 10
force The making anew Of I'll the tables o: trgono-
metrical Ines used in mIihemaScs, astronomy and
NAVIGATION and to have made the slgcbIac demonstra-
tons of French analysts difficult to be understood %
thc saysnts Of other countries. The etrsal system,
j. adopted in France Belgium and Italy.
LyrDs's HYDRAULIC HEATER The processes FOR
warming buildings economically are Of three oi'S,
viz: Stoves or hotar iurpsces ..esm apparatus aaG
hydraulic heaerf. In ariurnaces tie ar is hea'sd
by contact with the plates which ncose the hre, sno
in steam OF heaters the air is heated ~
contact with the weasel which contains the steam or
warm water. In all ceses portion OF the nea' Is
impaired by radiation. Dry, pure air IS composed Oh
about enty nine parts Of NITROGEN .sentyone pas
ofo1ygen, small quantity ofcsrbonic acid, and almost
ins2precabe quantities Of several other gases But
the air around us also contains water in solution water
mecbssically suspended, end particles Of mineral or
organic fubstsuces. Tie vartus modes OF warm
ire have the same effect the primitive
&C s;r and
Organic particles are differently affected by them.
Dry air has strong tendency TO dissolve water until
Il is saturated. The higher tie temperature Of the
air the stronger this tendency and the greater the
quantity of water necessary for ssturation. AL tho
moisture added after the sir is saturated remains me-
chanicaly suspended. The consequence of these
properties is that cold moist air. afer being warmed
ACQUIRES more moisture, and in absorbing it from our
skin and lungs it appears dry to US. The ceoer the
tspperature is outside and the it is Inside, the
drer will the air become. Dfyness depends entirely
on the degree of temperature II is corrected by
placing on the stove or heater open vessel filed
with water
The temperature Of tho heating surface Of steam
or wsIm.water heater is very uniform, and little mere
than 22o Fahrenheit that Of the surface Of furnace
is very yaable generally is low red, or about Nv
degrees, and sometimes red.hot 500 to 5000 de-
grees The organic particles in the air are only dried
by temperature of 2l2 degrees but by that OF SUI
deQr and above they instantly bmned-thati il.
to soy turned into cases. of which, as suphura-
ted hydrogen highly poisonous and produce fever,
or at least beadache. One may form On idea OF the
quantity OF particles suspended in the air from the fact
ths the valve Of the airengine whc! forms part OF
the House Telegraph, has to be taken out and wiped
every half hour to prevent clogsng from the accu-
mutation Of dust. portion OF these particles are min.
sra, but the bulk ore orgsuie substance these
being in general light. The ofa in TIE street, the fbers
rubbed from wooden floors or carpets, from c'ethn.
end bedding, are largely rslresented. The various
scents from the kitchen andthose constantly emanang
from living animals ale alss burned The compound
odor resulting people generally call the smell Of iron
II is fact yet unexplained by psychologists, that the
colder the country the higher the temperure required
BY its inhabitants. Thus the temperature Of apart
ments during Winter is in France 81 degrees in En-
gland degrees and in the North of tho United States
20 degrees. This want Of high temperature is more
easily supplied with stoves furnaces than by any
other mears This thereascn why they are so nuner-
Gus here but tie unhealthy effect of ese apparatus be-
gins at last to be understood and The more
enlightened portion Of wealthy citizens have
already introduced steam or water heating in
their private residences and in the public build
mgs they have in charge. The advantages OF
Leeds plsn arc cheapress compsctne.S, simplicity
ard durability. The main point Of the invention is the
casting in one piece, of several parallel pipes, in
straight rev. with square aanses at each end. The
four .iles of tie common faDges planed that to-
build up a tubular boiler, is simply necessary to put
the several sets Of parallel pipes above the other
to inert piece Of oil paper between the tanSes to
perfect the joint AMI to press the whole tight by few
bolts The water reservoir containing the pipes, Is
closed by boiling aipt the arges OF the pipes TOP,
bottom, and two sides. The pipes ere heIaSonsl,
this being the best ge?metlicsl ionn to bring the
pipes Of one row under the intervals Of the one
immediately above a. 10 occspy the smallest roas
bic space. The bottom and the sides Of the water re-
ssIvoir are corrugated hexagonaly, 20 a. to cor
respond with the intervals between the pipes ami
produce larger heating surface. This boiler is in
closed in brick woIk over ire-orate. The aame
pass under tho bottom, and il this is not sufficient are
made to return sons The sides and 80 hest the wates
contained between tie pipes. The air in the pipes is
warmed; This creates draft, and new air from the
outside is drawn in to be poured into the rooms The
boiler is connected with small reservoir, in which Is
Hca. acting on lock, aAiDg II -elifeedns. Each
hexsgonal pipe is in.er,ccted by thin plates Of lion,
which absorb the Iadiaiing heat emitted TIom each
side Of the pipe, and from which it i. taken by the
air. 1t is alleged by the patenec that these thin
increase the heating power in slIuost incredible
proportion Thus he found that the longitudinal par.
tons beirg in tie pipes tie air came ont at G5 ee-
rees aud with strong draft the partition being with
drawn, the draft was reduced and the temperature
only O. degrees. Another good effect results from in
Ching the boiler in tie brick work, that the flames
have slightly downward motion; it is believed that
this position facilitates tie current Of water constantly