Courier Democrat. (Langdon, N.D.) 1891-1920, 1891-02-19
SCIENCE AND INDUSTRY.

oCieNCE ANU INDUS Ky.
The Evan Hall plantation in Louis
lana has already turned out 1000, 600
pounds of sugar, with more than half
the crop of cane yet to grind.
"A new insecticide has been recon-
mended by Prof. J. B. Smith, viz, pot
ash in the form of muriate and kainit.
In the proportion of one ounce to one
pint of water muriate of potash de-
stroys plant lice, mealy bugs, bark lice
and thousand legs"
Not only is it now conceded that
new species can originate by hybridi-
cation, but new genera also. Sophro-
cat@ya is new genus recently estab-
lished, which was actually raised by
cross between Sophronites and Cat
6ya-two well known and very distinct
genera of orchidaceous plants.
Cincinnati, besides making 200, 900
sets of harness, turns out 10000 saddles
annually. The saddles are of rude
manufacture, however, and do not COM
pare with the English article. The
finest American saddle made does not
sell for more than $50, while the En-
glish make are up as high as $3.50 apiece,
and they are worth it, says manufac-
turer.
"A well-known manufacturer claims
that the only proper way of making a
ready-mixed paint in which there is a
considerable portion Of white lead and
zinc white present, to keep indefinitely,
is to emulsify the oil This prevents
the chemical action which the painter
knows as 'fatting'-that is, prevents
the formation of that particular kind of
lead soap which will not dry.
Professor Kirchoff. of Halle, in an
article speaks Of the anxiety with
which scientific men looked for the
meeting of the international conference
on degree measurement, for observa-
tons seemed to show that decrease in
latitude was in process, implying an al
teration in the direction Of the earth
axis. The fuctuation observed is prob
ably due to minute oscillation caused
by some changes in the internal mass of
the planet.-English Mechanic.
1T is not often that lost art is re-
covered but it is said that the chemists
have triunphed in the matter of the an
cient "Alexandrian blue" This blue,
the ideal of painters and decorators, was
peculiar and remarkably durable
color. The chemists are said to have
achieved a successful analysis of the
coloring on the Pompeiian frescoes, and
to have reproduced the paint, identical
with the ancient coloring in every par
ticular.
1t appears from the studies of Mr.
R. F. Bigelow on the habits of the Por-
tuguese man-of-war, that this interest
ing jell-ish feeds largely on small fish,
which, swimming against it's tentacles
are caught and benumbed. The fish
struggling to free themselves from con-
tact with the poisonous tentacles, cause
the latter to contract, and thus the prey
is drawn up to the feeding bells. If the
fish does not struggle, the tentacles fail
to contract The feedingbells spread
themselves over the fish and digest it.
The Seattle Telegraph puts forth
some useful information about that
smart young city and its progressive
State. Seattle's jobbing trade last year
was about SIS, ooo, 900, gain of SIS, OOO.-
900 over the previous year. Her bank
clearances aggregated almost S54, OOO,-
0OO She started five new banks, built
1857 new buildings, costing over Sc, OO0,-
0OO and dealt in real estate to the value
of S23, 1000, 900. The lumber output of
the State was large; the grain yield
&c. 900, 900 bushels The State exported
$4,000, 900 more of products than she i'm
and built All miles of road.
The remarkably rapid growth Of
some plants almost equals that of
Jonahs gourd of the olden time. 1t has
recently been noted that in one twenty
four hours of an April day-the East
India summer-a bamboo made thirteen
inches of growth. This is well for the
tropics. but here in temperate regions
are often growths 10 less remar1a BILE.
At recent meeting of the Academy of
Natural Sciences of Philadelphia, a
shoot of Japan plant, Pueraria Thun-
bergianum, was exhibited sixty-fve feet
in length, the whole of which had been
produced near that city between May
1st and September list. Six inches a
day being the average-no doubt greater
at times, is as good as the East Indian
case, considering difference of climate.
wILD-HoRsE ASSOCIATIONS.
The Protective Unions Formed by tho
Equine Species of the North,