The Iowa plain dealer. [volume] (New Oregon, Howard County, Iowa) 1867-1895, 1889-05-23
SCIENCE AND INDUSTRY.

lilies can. il Is said, be r.cut by
cleaning them in acidulatcd water he.
tween two plates Of carbon and closing
III. circuit 80 a. Ia form Il real voltaic
.cll.
One Of the chief features Of the
use Of paper fabric for building pur-
poses is the ease with which !. can be
worked into sheets OF any required
width or thickness that wilt no: be af-
fected by changes Of temperature OF
The Italian Admiralty. as the re-
suit Of numerous experiments. have
given orders that herccforth all cx-
posed parts Of machinery are to be
fabricated exclusively with castor oil.
while mineral oils are to be used fO,
cylinder and similar fabrication.
To withdraw an excess Of blood
from the brain. Professor Preyer, Of
Jena. makes his patient stand with one
arm 0utstretched until the limb aches
violently. This conducts All excess Ot
blood to the arm. and seldom fails tt
relieve the brain. Medical Bulletin.
-sIOuzean learned that some ami
mails are capable Of measuring time
that particularly interest them. lie
says that female erocodiles abandon
their eggs in the sand for ten or tifteer
days, according to the species. and re-.
turn to the spot at the exact time when
they are tG be hatched.
A tack machine will make from
80 to 275 tacks per minute. The work.
h0weve-. does not end Ecre, as the
facks are galvanized. timed. polished.
leathered and variety Of processe.
gone through with before the tack
reaches the packing room. The tota
output Of tacks in the United States il
500 tons a day. all Of which are readily
consumed.
Mr.. Friese Greene. a British pho
tographer. has actually produced !;
picture with only the light issuing
from his eye. Having stared for fif.
teen seconds at 3OOl-candle electric
arc only three feet away. he closed hi.
eye and quickly brought 1t over aensi.
tive plate AT distance OF one inch.
The result was very faint but distinct
image Of the are and the carhons. due,
probably. to momentary phosphores.
cence of the retina. A second attcmp'
failed. and gas lights proved too weal
10 produce effect.
In Dalinatia chrysanthe,n,ms art
largely cultivated TO supply the chem
lists with the substance from which the
well-knowE '.Dalnatian insect pow
der is made. The island Of Lesina i:
the chief seat OF cultivation. and iht
flower mOst generally grown is G. Gin
eraripfclium Trev. II is said that II.
other lo.al crop pays 50 we'll. the prod
net Of 4 single acre Of ground sellin:
from 500 TO $l.5OO. and the Govern
ment yearly distributes plants ut yer.
low rates in order that the indnstr.
may he still further developed.
The Austrian brentwood furnitun
is manufactured Of ordinary red beach
which is very plentiful in Hungary
The timber is sawed into strips fron
an inch and half 10 two inches square
and these are turned into round rods
They arc placed in an air-tight cas
and exposed for fifteen minutes 10 tn
action Of sup-rheated steam. whicl
makes them so pliable that They can b
hanf nv hand III fh., iron natterns
where they are secured and left to dr.
for several days. after which they ar
resdy IL be used in the manufacture &
tho furniture.
The treatment OF the insane is
/ subject which penctrateS social an
domestic life to the very core. Th
Lancet lays down three great desid
erata in the practical solution Of ihi
far-rcaching problem: l. That til
insane should be conducted 10 the i.
covery of their proper senses by til
| quickest. the most eiiicacious. and III
most kindly means. ,. That the grca
est possible amount Of teaching as
what insanity is in I'LL its Relationship
should be got out Of the eNperiene
derivable from practical work in col
ncction with the insane. :. That I'll
confidence OF the public should be .
tablished in the assurance that ever
thing that can be Zone Is being dol
for those members Ut the communal
who ARE insane.