River Falls journal. [volume] (River Falls, Pierce County, Wis.) 1872-2019, 1874-03-31


In London the milk bought by the
officials for analysis nearly invariably
contains an excess of cream.
A CORRESPONDENT of the Scientific
Republican recommends common glue
as an eflectual remedy flor cuts and
bruises.
In is said that if one part of sugar is
dissolved in three parts of water, and
digested with one-fourth part of calcic
hydrate, the resulting liquid will readi-
ly dissolve glue warm, and the solution
will remain fluid on cooling, without
having lost any of its adhesive proper
ties.
nj. PATERA proposes to render woven
fabrics non-inhammable by using, in
stead of sodic tungstate, a mixture of
four parts borax with three parts mag
nesic sulphate. One hundred grammes
of the mixture are to be dissolved in
three hundred TO four hundred cubic
centimetres of water, and in this solu-
ton the fabrics are soaked, then wrung
out, dried and ironed. Another mix
ture proposed for the purpose is that
of ammonia sulphate and gypsum.
HoT alum water is said tobe valuable
as an insecticide. Two pounds of
alum dissolved in three or four quarts
boiling water, and applied to all cracks
and creyices, will keep out and destroy
all red and black ants, cockroaches,
spiders, chinchbugs, fees, etc, Trav-
elers in strange countries should
always carry small package of pow
dered alum or borax with them to scat
ter round their pillows where they sus-
pect strange bedfellows.
NJ ONIMus has found that when the
wire of bobbin is bad conductor of
electricity the muscular contraction
produced isstronger, and the impression
on the cutaneous nerves is less vivid
than with good conductors, as copper.
These effects are more marked the
greater the exterior resistance. The
current induced in bad conductors has
greater tension than that in good, and
less quantity. Coils Iof German silver
wire NAV, in accordance with these
facts, be advantageously used in cleo
tromedical apparatus.
The following mixture is said to make
a very good barometer, it being very
sensitive to weather changes Mix
with q dTachms of camphor, dissolved
in 10 drachms of alcohol, with 40 grains
of saltpetre and 40 grains of sal am
moniae in 9 drachms of water. This
mixture should be placed in a four
ounce vial, with a piece of cloth tied
over its mouth, and placed in good
light, out of the sunshine, where it can
be observeded without handling. When
the weather is fine the fluid is clear. but
ON the least change the chemicals rise
from the bottom in beautiful frend-like
crystals.
A CORRESPONDENT of Nature says that
during the hurricane of October 9th,
1l73, he was residing on the west shore
of Biscayne Bay, South Florida.
In the early part of the gale, and while
it was approachingit its height, he noticed
overhead inAumerable man-of-war
hawks" They seemed to be Laying
to " Ito use a nautical phrase), with but
little motion of their wings their
heads were towards the wind, but in
stead of moving backwards they seemed
TO drift off in line calculated to take
them directly away from the storm
centre. This action he considers to
have been developed from experience
by the ancestors of the "man-of-war
hawk, " and to have become SO organic
ed i'll the race as to cause them TO leave
the track of the approaching cyclone
instinctively.
THE success of Professor G.. w
Hough, of the Dudley Observatory, i'm
constructing self-recording barometers
and Thermometers, lends additional in
terest TO his announcement of the sue
cessful construction Of an automatic
evapometer and rain-gauge. The APP
paratus consists Of vessel two feet
square and one foot deep, suspendedon
levers, and held in equilibrium by "A
small spring, the amount of change i'm
the weight of the mass. either from
rainfall or evaporation, being indicated
on the scales Of delicate balance. In
order to secure the mechanical record
Of the hourly variations in the weight
Of the vessel and Of its contents. the
professor causes the lever 30 vibrate
between two platinum points 50 placed
that whenever a change in the weight
of the vessel 10y given amount (say
ten grains) takes place, a magnetic cir
cult will be establishedpassing through
an electro-magnet. A micrometer screw
will then beoperated 10y meansof clock
work, thereby tracing curve on n
revolving drum, precisely ms in the
case Of the self-recordng barometer
and thermometer.
THE long-standing difficulty between
Garvia aud TurLot, with regnact a.