The herald. (Big Stone City, Dak. [S.D.]) 1883-1890, 1884-12-12
Scientific MISCELLANY.

The Theory Of Vaccinations Prof.
Tyndall suggests that, just us the soil
may be so etfectually robbed OF some
essential ingredient by one abundant
crop us to be incapable of producing
another, so in the human system a
parasitic disease may SO completely |
exhaust the blood Of some ingredient |
necessary to the growth and propaga
zion of the parasite that the produc-
tion of a second crop in fatal or con-
siderable quantities may beimposslble.
1t would thus appear that protective
the introduction into the blood of
weakened and comparatively harmless
disease germs to consume the materi.
al which might become food for SINH
lar germs in more vigorous and dam
gerous condition.
Wind Work-A gale at East st.
Louis in 1871, according to Mr.. {. Shat
Ter Smith, overturned locomotive,
eXerting Il force of no less than 50
pounds to the square foot. At st.
Charles . jail WAS destroyed in 1871,
the pressure required being "a pounds
At Marsheld. in 1850. II brick man
sion was leveled. the force necessary
being SIS pounds per square foot. Be-
low these extraordinary pressures. Mr.
Smith has lnstanced numerous cases Of
trains blown off rails, and bridges, etc.
Blown down, by gales Of "A to 81
pounds per square foot.
Successful experiments ID distribute
ing the electric light to great distances
have been made III connection with the
Turin Electrical Exhibition. A Ste
mems machine Of 80 horsepower gen
Grated i current which was slmuitan-
eously used by several electric light
systems spread over i circuit OF about
- miles.
\ motor driven hy small charges OF
gun-cotton is an English novelty. 1t
is said to be applicable wherever small
powers are required.
\ German botanist has given i'll
stances of the modification OF plants
by insects SO as to produce new yarie-
ties.
Great W Worms- According to Mr.. +.
t. Hedarl. Il London zoologist, earth
worms two feet III length have been
found in the British Isles, and various
species as large or larger are known to
exist III south America, Western
Africa, Australia and New Zealand.
The largest species known. however,
inhahljs South Africa. Forty years
ago il specimen WAS described which
but it seems to have been nearly for.
gotten until the other day, When Il gl.
.antic creature of the same species
MAS sent to the London Geological
Garden from Cape Colony. The long
est measurement Of this worm yet til
ken reaches six feet five inches. it's di
ameter being nearly half III inch.
Money Negeiation.-A Short time
since Paul Reinsch discovered seyera
kinds Of minute plants, including two
talgae which had before been unknown
growing upon coins after having beel
long enough III circulation to receive
thin acrtistatlons of organic matter
K Hungarian boianlst, Jules Schaar
schmidt, has more recently found the
microscopic grOWths upon paper mon
ey, even the cle;inest specimens no1
being free from them. lie has detect
"a seven species, including although
they are rire-the two new algae dt
scribed by keinsch
Pictures cf Sound. Some remarha
be photographs of 4 istolb let III It
fight. under the illumination Of al
electric spark. have been secured y.
Prof. Il Mach, OF Prague. lie l!:
also photographed the air streams
! which one may see over 4 l,ullsen bur
J ner placed in sunshine; and has ever
obtained pictures Of waves Of so'.lld
! these last being made visible by ;
method in which advantage is takel
. Of the irregular lefrlction Of light hy
air set in vibration by sound.
. \ French astronomer has fuuie! rna
! sons for nclevil.g that i circular pro
tuberancr, presumably volcano