Year: 1873

/ 1T is said that but two establish


ments in Great Britain make charcoal
iron.


An experiment recently made III
London proves that salmon-ova Will re-
main in healthy condition after having
been kept 112 days in ice.
A missionary is wanted for northern
Mexico who can ride on horseback all
dav in the sun, sleep on the ground, and
live on sour milk, cheese and red
pepper.


The Codorus ore is said to be an ex-
cellent thing to avert threatening
"chill" in blast furnace. Several car
loads of the ore thrown intOthe furnace
will purge it completely, causing the
Stag and ore to run freely.


The horticultural botanist Koch, al
ter long and patient investigation. Is IN
clined to think that the cultivated apple
is hybrid between several species of
apple that do not now exist ; its native
land is as yet undetermined.


Professor r. G. Kedsie of the Mich
igan agricultural college has analyzed
the air of a greenhouse which had been
closed for twelve hours, ami found it
better than pure country air. This seems
to be strong argument III favor OF
plants in sleeping rooms.


1T is said that glycerine mixed with
the water in st. am engine boilers pre-
vents the deposition of lime-salts, md
consequently protects the boiler from in
crustation. About one pound of glvce-
rine to every 300 or 400 pounds of coal
burnt is sufficient for this purpose.


There are about sixty manufacturers
of goat morocco in the United States,
abOut half of the number being in Phil
adelphia. The capacity of their facto-
ries is sufficient to make about 1900 do
zen day, and the average amount of the
morocco business for 1872 was nearly
S10,0O0,0OO.


The latest plan for Obviating sea-
sickness is the following: Construct a
large well in the ship around the cen
ire of gravity is the best position for it.
This we'll should have no bottom. The
water in it will appear to have rising
and falling motion, but will in fact be at
rest, while the walls of the well will
slide up and down. In this well float a
small ship, and you are secure against
seasickness. The proposer of the plan
calls it 8: taking "A small harbor to sea-"


-Ceresine is IA new substitute of bees
wax, obtained by chemical processes from
a waxy mineral known as OzOkerite. 1t
is sold in thin, white cakes, and is pure
white, scentless, harder than wax, and
partially translucent. 1t cannot be soft
ened in warm water, and is not liable to
the action of acids or caustic alkalies. 1t
is volatile at high temperature, and can,
be distilled unchanged. For many pur-
poses it will doubtless prove of great
value, and it is hoped that our dealers
will soon have it for sale in this country.


In lecture delivered at the British
royal institution, Mr.. j. Fl. Parker
brought forward facts to show that the
opinion commonly entertained, that the
ancient Romans were ignorant of the law
in hydraulics which causes water to rise
to its level, is popular delusit n. He
said that at every half mile of the aque-
ducts, on their course from the foot of
the hills to Rome, each agueduct forms
an angle, to break the force of the wa
ter and at that angle a great reservoir
is made, with a piscina or rfiltering-placc
at one end. Each piscina consists of four
vaulted chambers, two above and two
below. The water enters into the top of
the first upper chamber; it then falls
hole in the vault into the first
lower chamber then passes through
small holes in the intermediate wall
into the second lower chamber: then
rises again through hole in the vault
into the second upper chamber; and
khnv Col 20 of tho Co M Iey..I
At which it originally entered, depos-
ting its mud in the lower chamber as it
passes. Thus each piscina is constructed
npon the principle of water finding its
evel.