The midland journal. (Rising Sun, Md.) 1885-1947, 1885-10-23
Scientific,

An orchard of cocoanut trees ON the
ocean front of Southern Florida has cost
Ezra A. Osborn, % rich Jerseyman,
not less than 100000 The orchard
stretches for sixty miles along the sea-
and there are in it two hundred thousand
thriving trees. These trees were brought
in vessels from South America, and
landed by means of surf boats built 70.
the purpose.
A process of engraving on marble has
been devised in England. Instead OF
the costly process of engraving with
tools a design reproduced from ~ car
toon, bv this new process the artist
draws with his own hand directly on the
marble with acid, which eats away the
surface, leaving the burrows, which are
afterward filed with dark composition
or color, to bring out the design. The
effect i'll the samples exhibited is said
to be good, and the artistic advantages
of drawing directly upon the the marble
without the interposition of q work
mans tool between the hand of the
artist and the final result, is in Itself an
important advantage over ami above the
saving in time and labor.
Liquid oxygen is one of the best of
refrigerants. NJ. Olszewsky has found
that when it was allowed to vaporize
under the pressure of one atmosphere
temperature as low as 1910 cent?
grade was produced The temperature
fell still further when the pressure on
the liquid oxygen was reduced to nine
millimeters of mercury. Though the
pressure was reduced still further to
four millimeters of mercury, yet the
oxygen remained liquid. Liquitied
nitrogen when allowed to evaporate
under pressure of sixty millimeters of
mercury gave temperature Of -a1lo
centrigrade. only the surface became
Opaque from incpient qualification.
Under lower pressures the nitrogen SOL
idified, and temperatures US low as -
$3.50 centigrade were recorded by tho
hydrogen thermometer.
At recent meeting of the Societe dc
Therapeutique DR.. Dujardin Beaumetz
recalled the fact TINT in treating turp.n-
tine with an alkaline carbonate, a sub
stance is obtained to which the name
"terpine" has been given. This ter
pine has heen experimental with by DR..
Lep ne, of Lyons, who has ascertained
that it is endowed with very marked
diuretic properties and that it modifes
the bronchial secretion in old catarrhal
affections. Dr. Dujardin Beaumetz has
since experimental with "terpinol," a
derivative Of terpine when subjected to
the action of su; phuric acid. Terpinol
is an oily substance, having the o,lor of
jasmine, and soluable in water to very
slight degree. 1t exercises its action
principally on the bronchial secretions,
which it rapidly fiudifies.
The coal fields of Russia are, Mr.. W.
Mather says, still practically undevel-
oped. The Donetz coal field is too
remote for the manufacturing districts,
and the railroad communications are too
uncertain to admit of its being largely
used The Ignite found within radius
of 200 miles of Moscow does not offer
fuel of sufficiently good quality. 1t is
a remarkable fact that during the past
two Years English coal has been found
TO be the most prof able fuel that man.
ufacturers could use Immediately round
Moscow at II price laid down of about SO
ton. Twenty years ago the price of
wool fuel was so low rs to be equivalent
to coal ut So ton. but now coal ut SO a
ton is cheaper fuel. This is apparently
the consequence of the reckless destruc-
ton OF forests in Russia without any
counteraction in the shape of systematic
tree planting
An account of the operations con-
nected with tho object of finding water
Ill the desert tracts of Southern Tunis
has been given by M Ferdinand ,le