The Indianapolis sentinel. [volume] (Indianapolis, Ind.) 1880-1904, 1885-02-22
CURIOUS, USEFUL AND sorEsrIrIo

Tie British army now hiss field-kitcnen
which does its work while on the march.
Russia makes annually l25 600. 0O0 birch
snd box wood spoons for the Central Asia
market
Professor II. Nunk = worker o. some en-
inence In agricultural chemistry Gays tnat
moderate muscular exercise increases the
| yield Of milk, but that violent motion hin
6efs the process OF milk secretion. Dairy
/ farmers may turn his remarks TO profit.
The marble trade OF San Francisco is worth
! =, coo, eco annually, one-tourth OF which sum
has heretofore been paid to the Cara QUAR-.
~. OF Italy. With the new San Francisco
| company operating in the Alaska qusrries
the city hopes to . lrchase her after Is en-
| tire supply from It's own citiz sns. and at the
same time get marble OF equal beauty as
heretofore.
AL ruminant hoofed beasts have horns
and cloven feet. II the hoofs are even tue
horns are even. il odd, as in the rhinocerous,
the horns are odd, that is single or tso
| placed one behind the other. Recent Great
ures with feathers always have besks. Pig
| cons with short beaks have small feet The
| long limbs OIL the hound are associated with
q long head.
The fiexibility itacnlumi.e-a remark
able sandstone existing in 5eOrgia sn north
and 81 nth Carolins-seems 10 be surpassed
| By thst OF a masp esian limestone found at
| the en trance OF the Tyne IN Eneland. This
! limestone is reported TO be so flexible that
thin layers, three feet or more in length,
may be bent into circle while damp, re-
tanning that form on drying
Professor Milne supposes earth tremors to
be slight vibratory motions produced in the
soil BY the bending and cracking of rocks,
caused by their rise upon the relief OF at
nospheric pressure" Another investigation
thinks that they may be the result of al in
creased escape of yapor from molten mate
rial beneath the crust of the earth conse-
/ quent upon a relief of external pressure.
In other words these premonitory symp-
toms are developed when the barometer is
! low.
For testing gold make up q. liquid con-
sstir of nitric acid, one ounce; water, two
| ounces; and muriatic acic, one-half scruple.
| Mix The ingredients vel aud keep the s)lu-
! on in bottle with glass stopper. With
| glass ROD which has bs cl dipped in the mix
| iule touch the metal and watch the action.
! II no effect Is produced on the metal il is
-lthtr gold or gold-plsted. IL the gold" is
very low or less than nine. karat the acid will
| ocii green, and base metal is at once de-
| 'cted by the mark left by the acid. To test
silver apply drop OF a solution OF nitric
| {. cid, three ounces; water, one ounce, aad
fIchromate of potash. one half ounce and
vlpe Off the drop immediately with a sponge
md water. IL a blood-red mark results the
II etal is silver or The article Is silvef-pated.
The simplest method OF taking nourish-
ment by animals is by absorption through
the SKIN. The tspeworm, for example. has
neither mouth nor stomach, bat imoibss the
iieests food OF the animal IL infests Many
other animals, pscially insects. live uoon
| iQnid food, but obtain IL by sucli IN,
through a special oTifice and tube. THUS We
find a mouth or smoker, furnished with teeth
or IsncIpg the skin of animals, as in the
lee cb; a bristle Ike tube fitted for piercing.
as In the mus nito; a sharp sucker armed
with barbs, to fix it securely during the set
of sucking as in the louise. and long lexi-
bic roboscs, as in the butteif lv. Bees have
a barry cham e.ed tongue. and Hes have one
terminating in large, fesby knob. with or
without little knives at the base for eating
the skin; both lap rather than suck their
foJd.
The Injurious effect produced by illumi-
mating gas IL due, according TO Grube's re-
searches. not 10 the continuance OF its &C
tlon bat to its concentration, or the percen-
tsee OF ii in the air. II is asserted that air
containing FIVE parts in ten thousand can be
brealh he'd by men I'D animals for hours, and
even days, without any injury to the health;
from seven to eight parts in ten thousand
cause indisposition; twenty parts produce
difficult breathing, loss OF power I'D uncer
tainty OF motion; with twenty TO forty
parts drowsiness begins. and when there is
still more carbonlc oxide In the air. the pol
sopir is attended with violent symptoms,
bralb ard spinal column are especially az
fected, cramps seize the victim, yet he may
recover. If brought quickly into fresh air.
Breathing cir heavily charged with cafbonic
oxide for long time may likewise cause
death.
To color marble beautiful yellow with
out injury - polish or hardness A neutral
choriue OF iron is first dissolved 10 70 per
cent Of alec hoi, and after gently heating the
marble 10 be coDored In an oven or over n
iie, the solution In question Is applied by
means Of brush, sTrDkler, or even by
pouring. The strength of the solution IL, of
course proportioped 10 the depth OF the
color desired and care % requisite also In re-
sard to the degree OF temperature. For the
production OF light tin,s IL is considered
preferable TO apply very diluted solutions
repeatedly. On the marble becoming per
T. city dry 10 IL moisteped with water or ox-
posed to moist air. when the decomposit on
OF the salt OF iron takes place in the upper
,tia'a ana the process 81 oolorstion 10 com
pete, all that remains 90 be done is 20 polish
the suffsce n ne sseafy, or II may simply Toe
fnbbed off with n vet cloth