Savannah morning news. [volume] (Savannah) 1868-1887, 1884-07-27
BITS OF SCIENCE.

German experiments have proven that
sea mud is a much better fertilizer for rye
and oats than farm-yard manure.
All the vessels of the British navy which
carry divers are to be supplied with tele-
phones for submarine communication.
Actual thirst is as quickly satisfied with
hot water as with cold. When only ice
water is desired the probability is that
the person drinking it has eaten some-
thing which has irritated the stomach,
1t is said that by the following simple
method almost instant relief Of earache
is afforded: Put five drops of chloroform
on little cotton or wool in the bowl of
clay pipe; then blow the vapOr through
the stem into the aching ear.
Ice water is the great American vice
and probably kills more persons than rum.
That it is cooling to the entire system
cannot be denied, but sudden changes of
physical temperature from warmth TO
GOODNESS are always detrimental to health.
Trichina, if the experimental results of
the work of MN. Mignon and Touard, of
Paris, are to be relied upon, are said to
be rendered innOcuOus after the meat con-
tanning these parasites has been subjected
to a temperature so low as 20 degrees CEN
tigrade.
The rage for salt, pepper and mustard
may be charged with much of the inordi-
nate thirst which makes the travelling
American a marvel to his European cou-
sins. Water, to which has been added
one-twentieth part of its weight in ice is
cold enough for any properly fed person.
Persons who are compelled to cool and
mOisten their palates should first rinse
the mouth with a sip or two of water. If,
afterward, they feel that they must drink
they should lmbibe by single sips. BY
this method they will be as fully satisfied
with gill of water as with pint hastily
swallowed.
The authorities of Berlin are trying tile
pavements for the streets. The tiles are
nodded into blocks 7.S inches square and
80 inches thick, and impregnated with
bituminous products up to 20 per cent. of
their volume. They are laid on concrete
six inches thick and the spaces between
them are filled with hot tar.
Mons. E. E. Blavier, the eminent French
electrician, associates earth currents,
which at times SO powerfully affect tele-
graphic operations and the mariners COM
pass, with trade winds, and thereby indi-
rectly with the sun. He faVOrs DE la
Rive's theory that the aurora borealis is
due to the circulation of electric currents
in the higher regions of the atmosphere.
ANALYSIS of the roe of the salmon shows
that it is nearly one-half (48.7 per cent
composed of nuclein, an albuminOus sub
stance rich in phosphorus. This, then,
would be an almost Incompatible brain
food, if, as is generally conceded, that or
gan apprOpriates largely the phosphOric
particles from our HutrimenL. The nitro
genous matter in all spawn is in much
larger proportion than exists in the adult
animal.
Vaccination performed once does not
act as a preventive OF smallpox after a
certain length of time has elapsed. An
examination of the statistics Of this dis
ease shows that Of those who had taken it
and had been vaccinated in infancy, 80
per cent. are over 10 years Of age, while
only 10 per cent. are under 10 years of age.
ReVaccinatiOn at intervals, say OF wears,
is the only known effective measure for
protection.
Coffee is not a good summer drink. Its
stimulating property is beneficial to per-
sons with a sense of physical debility; but
coffee arrests, temporarily, all natural
processes OF waste, whereas in hot wealth
er these should be allowed full play. Tea
is far better drink. 1t is stimulating,
and is therefore very injurious when taken
in large quantities: but oyer-stImulation,
with its implied necessity of in some way
making good the physical force which it
enables to develop too rapidly, are its only
bad effects. Taken without sugar it is
cooling, but heaped teas7oonful Of sugar
will generate as much physical heat as a
quarter of a pound of beefsteak. Sugar
is the most heating of all articles Of hu-
man consumption.