American watchman and Delaware advertiser. [volume] (Wilmington, Del.) 1822-1828, 1823-07-08
FRoa THE NATIONAL IxrELIrorxcpn.

FROM THE NATIONAL lNTELLIGEECER.
COMPOSITION TO PRESERVE WOOD.
Mr. Gales,
II becomes important to have simple compost
ton, in the application of which, the durability Of
bridges constructed of wood will be extended for
long period Of time without roof; whereas ii
elt exposed to the weather, ten years is their esmat
cd limit OF duration. 1t we'll deserves the attention
OF the directors Of the city bridge company, for, as
the im5ers are new, we'll seasoned, and have sui
Tered no apparent decay, the mixture being put
ION will be 10 time to prevent the operation of the
send you two receipts, one Tor the preservation
of wood or tmbers liable to be injured BY the wealth
Ter; and one for the roo of house. to defend it not
only from the weather, bu, also from fire. and
doubt not they will be both acceptable to many Of
your subscribers, among whom am ONE.
City Of Washington,
l7th June, 1911.
Composition for preserving Weother- boarding
and all other acOrk liable to be injured BIZ tie
aceather.
Lime, it is we'll known, however we'll burnt will
soon become Stacked by exposure in the open air,
or even when confined in situation, fnot remarka
IDLY dry, so as to crumble of itself into POWDER
This IL what is called alrslacked lime, n contradis
function to that which is Stacked in the usual way
10y being mixed with water. For the purpose OF
making the present useful composition to preserve
len sorts Of wood works exposed 10 the Weiss udes
lot weather, take three parts Of this air-slacked lime
two OF wood ashes, and one OF fne sand pass them
Though fine sieve, and add much linseed oil 10
the composition as will bring it into proper
sstencc OF working with a painters brush AS
particular care must be taken to mix it carefully, il
should be, ground stone slab with proper niul-
ler in the same manner painters grind their white
lead, &o But where these conveniences are not at
hand, the ingredients may be mixed in large pan
IL
ofhs composition being necessary, the first may be
rather thin, but the second should be thick as il
can conveniently be worked
This most excellent composition for preserving
wood wheE exposed to the injuries of the weather,
is highly pl eferabe to the customary mode of lay.
ing OH tar and ochre. 1t is indeed every way bet
ter calculated for the purpose; being totally i'm
penetrable BY waer and SO far from being liable 10
Injury by the action of the weather, or heat of the
sun, that the latter, though such powerful enemy
to tarred and ochred pailings &c. hardens and
consequently increases the durability of the present
proposed composition.
.lpotser receipt for the roof Of house, to defend it
from the aveather and from fire.
Take one measure Of fine sand, two measures Of
wood ashes well sited, three OF Stacked lime ground
up with oil /; laid on with painters brush; first
coat thin, and second thick
painted board with this mixture, and it ad-
heres so strongly 10 the board, that ressts iron
tool, and put thick on shingle resists the opera
ton OF hire. used only part of the mixture
what remains continues In an iron pot water has
lain on the mixture for some time without penetraI-
ing the substance, which is as hard as stone.
The following article, communicated for the
Salem massachusetts, Observer, is unquestonably
from the pen of MIR. Bowditch, the celebrated Ame-
rican Astronomer:
Reappenrance Of Enche'S Comet - Baron lacks
Astronomical journal for January S23, contains the
interesting intelligence, that Encke's Comet, which
was expected to be visible in the summer of 822
in the Southern hemisphere was discovered at
Paramatta in New South Wales where the English
have lately erected observatory under the direc-
lion of the very active and intelligent astronomer,
Mr. Rumker. An account Of the former appea-
RANGES of this comet in 1886, 1875, sos, and 1919,
with periodical revolution of about 1904 days,
was given in the 5h volume Of the North Ameri-
can Revew-and It's place observed by Mr.. RUM
ker at the time of its discovery, June 9, 1922, at
l0h. 39m. 29s differed but few minutes from
Encke's calculation given in that Review. The
observed Right Ascension being at that time 92d.
43m. SIS. 8 its declination I'D. SOM. 46s. N
On the 23d June at l2h. Som. sos. the Right AS
cension was 1l5d Ann. Ais, z; Defamation Cd.
ON. ABS. A. This is the second comet which has
appeared according TO the predictions of astrono-
mers.
NIB.
Salem, June 81, 1928.