The evening times. [volume] (Grand Forks, N.D.) 1906-1914, 1906-08-11

germs must be destroyed, kept dor
mant, or their growth prevented in
some manner. The oxygen of the air
Is the chief supporter of the chemical
changes which take place. In most
methods of preserving eggs 1t is de-
sirable to exclude or sterilize the air.
which may act as conveyor of both
germs and oxygen to the eggs. Fresh
1nferttle eggs, even after several DAYS
subsection to the temperature of incu-
baton, are found to have changed but
little and can be used for cooking pur-
poses. A fertile egg, which has been
tncubated even for few hours, so
that the chick embryo has started to
grow and has then by some means
died, soon decomposes under ordinary
conditions. Among numerous methods
of preserving eggs, the following have
been considered worthy of experiment
tai tests:
Water glass (silicate of soda.)
DRY table salt (chlorid of So
3-Slaked lime and salt brine.
4-Vaseline.
5-Dry wood ashes.
6-Finely grounded gypsum (surface
of lime)
7-Powdered sulphur.
S-BrimstOne fumes and sulphur.
9-Salicylic acid.
19-Salt brine.
In each test, unless otherwise stat
ed, fresh eggs, gathered with care and
cautiously handled, were used. When
the preservative was in powdered
form, clean, dry, unwashed eggs were
used. When liquid preservative was
used. the eggs were, unless otherwise
noted, carefully washed in clean
water. Except in few cases, the recep-
tacles used for holding the eggs were
stone jars. each six and one-half inch
es In diameter and seven inches in
height, and provided with stoneware
covers. From the parallel tests, un-
less otherwise stated, as uniform as
possible in size, color of shell and age;
laid by fowls of one breed, treated
alike as to food, range, care and man
agement. During the trial the stone
jars containing the eggs remained I'M
disturbed upon the floor of a cellar
closet where the temperature ranged
from 62 degrees to 81 degrees F. in
summer. The duration of trials was
extended beyond the length of time
usually required, in order to most
thoroughly test the various methods
used. In several cases fortified and
sterile eggs were compared.
Water Glass (Silicate of Soda.)
Method: The water glass, or soluble
glass. is obtained of druggists, and
costs from 40 to so cents per gallon,
That used in tests was 1.12 specific
gravity, which in the first series of
tests was diluted with distilled water
to ten per cent solution Tin practice
take one pint of water glass and add
nine parts of boiled water.)
On May IS, 1899, twenty eggs of
Leghorn fowls, laid during the five
days from the 18th of May, were care
fully washed with water and placed
in stone jar. The ten per cent solu-
ton of water glass was poured over
the eggs until completely covered with
the liquid. The covered jar was plac-
ed on the floor of the cellar closet and
left until the end of the test, April 4,
1900. Result: Good, 100 per cent;
bad, per cent
On opening the jar the water glass
was found to have formed a white
gelatinous precipitate. which adhered
more or less closely to the eggs. The
shells of the eggs were very clean
owing to the alkaline nature of the
solution; the air cells were not en-
larged. Examination showed the
whites of the eggs to be clear, but not
so limpid as those of fresh eggs. The
yolks appeared to be normal in color