The Northern Pacific farmer. [volume] (Wadena, Minn.) 1878-1885, 1880-01-01

Mf. "A. w. Blytn, who read 8 paper
on cows milk at recent meeting of
the London chemical society, found
that COWS suffering from very acute dis
ease may give milk differing in no es-
sential feature from normal milk, as
revealed by analysis, while local affec-
tions of the udder are easily recognized.
The statement that the juices of red
flowers are acid, and those of blue ones
alkaline. is incorrect. According to the
Transactions of the Munich Academy
Of Sciences" Vogel has proved that an
extensive series of blue flowers have an
acid reaction, and the red wings of the
flowers pisum savitum are neutral.
The presence of trichina in pork can
be readily detected with q microscope,
and people who like that article of diet
would do we'll to insist on careful in
spection of it before allowing it to ap-
pear on the table. In Berlin every pig
killed must be examined with the mi
croscope before it is sold, or a penalty
will be inflicted
It has been calculated that if single
grain of wheat produces fifty grains in
one years growth, and these and sue.
ceeding crops be planted and yield pro-
portionately, the produce of the twelfth
year would suffice to supply all the in
habitants of the earth for lifetime: in
twelve years the single grain will have
multiplied itself 244, lao, 625, 100000
times.
Among $3.50 colored children in the
schools in the District OF Columbia, of
whom 1859 were males and 1851 fe-
males, DR.. Swan M. Burnett found
twenty-four individuals affected with
colOr-bllndness, viz, twenty-five boys
(1.6 per cent? and two girls (O.11 per
cent? This proportion of color-blind-
ness Is very low, among whites it is 8
per cent. for males and O.26 for females.
To make beautiful black color for
bronze concentrated thin solution of
nitrate of silver is required. It should
be mixed with an equal solution of
nitrate of copper, and we'll shaken to-
gether. The pieces which require COL
oring are dipped into this solution and
left for a short time. When taken out
they should be equally heated till the
required black cover makes it's appear
ance.
The Nature reports the discovery, by
laborers, of an ancient buriaI-place,
while they were making a road near
COLDER, in Pomerania. Twenty urns
were found. Most of them had been
shattered by the penetration of roots of
trees and by other causes. Three large
and two smaller urns were found to be
intact. Among the contents of the
urns were one iron needle and two iron
rings, besides quantity of glass beads
And rings and needles of bronze.
The German government has taken
steps to prohibit all lads under Is years
of age from smoking in the streets, and
the police in certain towns have had or
ders to enforce the rule and punish all
offenders by fine and imprisonment. A
Belgian physician has found that the
too general and excessive use of tobacco
is the main cause of color blindness, an
affection which is occasioning anxiety
both in Belgium and Germany, from it's
influence upon railway and other acci.
dents, and also upon military inef6ci-
ency.
The London Chemical News gives the
following testimony in proof that COP
per salts are not poisonous: "Mr. GAL
ippe, in paper read before the biologi-
Aal society of Paris, described the fol-
living experiment: A rabbit received
daily for six months two grams(?) COP
per acetate. At the end of this time it
was served up at the table of the learned
chemist. The liver weighed seventy
grams, and contained thirteen cent?
grams of copper. NJ. Galippe partook
of it, and has suffered no inconven-
ience."
Most people will remember the furore
caused by the so.called tempered glass
invented by M. De La Bastie, and the
multiplicity Of purposes for which it is
said to be adapted. But the lamp-chim-
neys, breakers, etc., made of that ma
terial had q fatal facility of suddenly
exploding into a thousand fragments,
sometimes spontaneously. It is now
ar&punced that De La Bastie has made
such improvements in his glass temper
ing process that the quality of the prod
uct is immensely more durable.
The introduction of magnets into all
the great FIGURING mills has been a reve-
Iation to the millers who complained of
wire 10 wheat. Not only have the mag.
nets captured all the stray pieces OF iron
bands, and thus removed the last obiec-
ton urged against wire-binding harvest
err, but they have revealed the startling
Y fact that, Of tho scraps Of iron and steel
that find their way to the mill mixed
With wheat, fully one-half are something