The Penn's Grove record., 1883-08-25

have made his industry contribute tu
their support by foraglng upon fruit
bearing and ornamental trees. The
spiCer family, Notwithstanding many
attempts to reel their beautiful threads,
still nonopolize their products for pur-
poses of locomotion and snares for I'M
lucky insects.
PLAIN COURT PLASTER that will not
stick and remains flexible Soak isln-
glass in a little warm water for twenty :
four hours, then evaporate nearly all
the water by gentle heat. Dissolve the
residue in a little proof spirits of wine
and strain the whole through a piece of
open linen. The strained mas should
be a stiff jelly when cool. Stitch a
piece of silk or sarcenet on a wooden
frame with tacks or thread. Melt the
jelly and apply it to the silk thinly and
evenly with a badger hair brush. A
second coating must be applied when
the first has dried. When both are dry,
apply over the whole surface two or
three coatings of balsam of Peru. This
plaster remains quite pliable and never
breaks.
LINsEED MEAL. - 1t has been re-
Gently observed by a French scientist
that linseed meal from which the oil
has been eliminated in such a way as
not to effect the other principles present
retains all the therapeutic properties OF
the ordinary meal. With equal weight,
it contains more mucilage, starch, al
buminoid substances, etc. To prepare a
poultice of suitable righteousness and
consistency, twenty-five per cent. less
of the oilless meal is required than of
the ordinary meal. The poultices pre-
pared with the oilless meal are less
heavy and remain longer warm than
the others. The prepared meal, more
over, does not become rancid. After
many experiments in eliminating the
oil, sulphide of carbon has been found
the most suitable agent.
To TRANSFER PRINTS TO STEEL OR
Classic transfer prints to polished
steel or to glass, make a yarnish as fol
lows-Gum Sandarac, four parts
mastic, one part Venice t%urpentine,
ole ounce alcohol, fifteen parts, or any
smaller quantity in proportion. Digest
in a bottle, with frequent shaking.
Moisten the print slightly upon the
back by layinga wet cloth upon it then
varnish the steel plate or glass with a
thin, even coat lay the print with the
| face next t tie varnish, commencing on
| one side, SO as not to enclose aiI-bub.
bles, pressing it down close with the
! fingers if the print is small, or a soft
roller if the print is large. Be careful.
that all parts of the print are in contact
with the varnish. Lay aside to dry.
Afteri it is dry, wet the back with water,
and cautiously rub off the paper with tht
fingers rub lightly towards the last
with plenty of water, and the surface
of the varnish will come up smooth
with the ink of the p int solidly EN-
bedded. Then a thin coat of mastit
varnish will give it a finish.
IMPERFECTLY BAKED BRIcKs.-I Il
is often observed that bricks imperfect
ly baked become friable at the surface
and in time are reduced to powder
This phenomenon has been attributed tt
| the action of moisture, alterations o.
heat and cold, etc. ; but recent obser
vations make it probable that these
merely favor the action of the real cause
VIZ, the development of microscopic
organisms. M. Parize observed som
swellings ON the plaster coat of a bricl
PARTITION he pierced n of these, ant
a very fine red powder came out, result
ing from pulverization of the brick
Examined with a magnifying power O
about three hundred diameters, thi
powder showed an immense number O
| diatoms and silicious alga belonging
to the original clay of the bricks
The existence and multiplication o
such organisms under about ene-6ftl
# an inch in thickness of plaster SEEM
surprising !: yet M. Parize found thu
same organisms-though fewer of then
at a depth of about one inch in thu
~undecayed brick. All the deterioratet
bricks showed the same organisms
These facts seem to have important
bearings on the durability of build
ings methods of d%isinfection of hospi
tails, etc,