Richland beacon. [volume] (Rayville, La.) 1869-1890, 1880-05-15
SCIENCE AND ART.

death ut every pore.
BY washing the trunks of young trees
in preparation If an ounce OF carboilc |
acid to a pail OF soap suds. you Will DE
able to keep away all animals ana H.
sects that destroy the bark.
A REMARKABLE organization TOT the |
pursuit of chronological science has been
formed in Paris, with delegates and cor
respondents in every pat of the world.
NJ. Francis Parkman has been ar-
pointed delegate for Massachusetts,.
An attempt is being made to suos!l-
,u.c paper ter wood in Germany, in the
manufacture of lead pencils. 1t Is
.teeped in an adhesive liquid, and
rolled round the core OF lead TO the re-
quired thickness. After drying, IL Is
colored, and resembles an ordinary
pencil.
EEIc,SE, a new colOring matter re-
Gently discovered, has received It's name
from Erica vuigaris," the common
heath. 1t is prepared by heating with
an alum solution, the wood OF either the
common heath or the different kinds OF
rop,ar. The result is yellow extract,
having qualities belonging to those ordl-
narily found in commerce, but surpass-
ing them in brightness.
sr seems difficult to account for so
small a creature as bird making tones
a. loud, in singing, is All animal one
thousand times lis size. But it has been
.ii.covered that in birds the lungs have
several openings, communicating with
corresponding air-bacs. or cells, which
ill the whole cavity Of the body from
the neck downward, and into which the
air passes and repasses.
SEASONED timber is but little liable
Ia decay under the influence OF dry
atmosphere. and will resist GecompOsi-
ton for an definite period when kept
totally submerged in the water. The
piles Of old London bridge, driven eight
hundred years before, were found to be
in good condition when the new bridge
was erected, in 1929, and those which
served as the foundation Tor Trajan's
bridge over the Danube, A. ID. 100, are
said to he still visible at low stages OF
water.
THERE is a talk of constructing a
crystal palace in the park CT st. Cloud
n ar Paris. The ruins of the old palace
would be removed, and on its site would
arise handsome structure surrounded
hy costly come and containing conser-
vatu!ie., q gigantic aquarium, museums
Of science and art, and a theater. Model
farms would also be established in the
Immediate neighborhOod, and there
wou he a pigeon shooting and Othe,
rl. assure grounds.
CHEMISTRY has hitherto failed to de
tect any special Ingredient to which The
air evolved by marshes owes its poison
Gus qualities, but that vegetable decom
p,oition is the source of the poison is i'll
ierred from various circumstances. AL
though moisture is necessary to TIT
evolution Of miasma, vet an excess OF |
often acts as preventive. 1T is clea
enough that there is an intimate cOnnec
ton between certain diseases and marsh,
districts q. a.Hs
THE production of any we'll know
substance artifcially by the synth ,icta
chemist is generally viewed by the pub
lie with opposition, until convinced tina
it is identical with the natural product
A German paper produces an endorse
ment of artificial vanilline by Prof
Meidinger, who says it possesses unde
niable advantage over natural vanilla
The latter lOOses its aroma, unequal
and the natural bear only contains tw,
per cent. of valuable material, will
ninety.eight per cent. of worthless o
even injurious material, the removal o
which is troublesome and tedious, be
fore the pure flavor can be obtained. IL
Germany the venilline is mixed witt
sugar and put up in packages of differ
ent strength for different purposes. Tina
for chocoiats manufactures is sevent
times as strong as good vanilla; that TO
family use put mp in packages equal t
one bean, and SOLD at nine cents each
that for liquor manufacturers contain
two per cent of vanilline. DR.. Meidir
ger speaks very highly Of his artifcis
vanilline, which may pc wholesome, bu
has it the delicious bouquet of the natu
raj bean?
A new metallic compound. applicabl
to many artistic and industrial pul
poses, has been recently announced j
England. The substance belongs to tn
class known as the thiates, or sulphu
sulphides. Nearly year ago Mr. f.
Berger Spence discovered that sulphidt
Of metals combined with molten su
phur form a liquid. This liquid on COO
ing became solid Homogeneous mas
possessing great ten y, and having
peculiarly dark grey, almost blac
color. Ii has comparatively low mel
ing point, viz. 3200 Fahr., or rAth'
more than 1902 above the temperatul
Of boiling watsr. II would thus requil
only small amount of fuel to redu,
or melt it. The new compound also e.
pands on cooling a property not share
by the majority of other metals or m
tallic compounds. For such purpos
as joining gas, or water pipes this e.
pansion is Of great importance. 1t
also claimed that the new compound 7
sists favorably atmospheric or cilmat
influences, as compared with bronze
marble. and ina. its resistance to aci
is much superior to that of other meta
or metallic compounds.
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