The Bolivar bulletin. [volume] (Bolivar, Hardeman County, Tenn.) 1865-1888, 1879-02-20
SCIENTIFIC NOTES.

A small quantity OF salicylic scid |
is tonnd to stop termination altogether. |
Picnic acid only suspends it.
Hydrogen is easily obtained by treats |
ing ferrO-manganese with dilute sUl~ |
phuFic acid. The gas thus obtained is |
not merely adapted for ordinary laboTa- |
tory purposes, but also for Marsh's |
arsenic test.
There Is a curious and close likeness
between the character OF the Greek and
the American, which goes even into the
type OF the physique; it has often been
noticed in Greece, both by Greeks and
foreigners. The element of imaginative
ness Is one of the strongest components
in the similarity.
The number of people seeking indus
trial recreation is very large. a CORES
pendent writes: {" We can get lathes
and fTet-saws and other machinery for
amateurs in abundance, but q compact,
portable hand-loOm would be a novelty,
OF which it might with some truth be
said that no house would be complete
without it. "
J. NJ Stearnes, of Brooklyn, points
out a source of danger possible with the
electric light, namely: its effect upon
light Of an electric arc, one is to be sub,
jected to very powerful stimulant, from
tue obstruction which his BODY affords.
Our eyes cannot bear it, and there is no
reason to doubt that ever nervous tissue
will feel its use.
A. S. Wilson, an English scientist,
has made an elaborate calculation to
show the marvellous industry OF bees.
Starting with the ascertained fact that
l25 heads of clover yield approximately
10 432 grains OF sugar, and that the pro-
portion OF sugar i'll honey may be roughly
estimated ats per cent, he finds that
900, 600 clover flowers must be visited
by bees to obtain one pound of honey
from that source.
Pork differs from beef and mutton,
not in favor only, but in the larger pro
| kOrtiOu of fat to lean fl esh. This il due
| both to the nature o. the animal in its
/ tendency to store up tat, and 10 the
| habit OF 80 feeding and treating l. that
| this tendency may BE- fully developed.
| The pig stores up in its bady three times
! more of its food than the OK, and by 81
| much Is IL more cheaply aud quickly
| grown and fattened.
| Russia has attained a foremost position
/ ia photography. 1t is largely I'D. ptsd
/ toy many government establishments for
| the reproduction OF maps and Of sJat-
/ papers. The p3rtrAiJure, however, Is
most remarkably cultivated. Many
! causes have contributed TO this perfec
/ Cion, but most prominent IS the artistio
| cal culture Of the photographers, many
| OF the bet known photographers having
taioed high decree OF proficiency as
! painters before they embraced The new
art.
Some Of JaPan's tea plants are $50
! year. old. and some plantations produce
over 50 600 worth per acre a few
choice leaves, of which small quantity
| Il produced, sell at home IS high IS IS
per pound Government taxes in japan
are now levied at the rate of 20 and one
| half per cent; while formerly they have,
at times, been as high IS from fl ty 70
seventy per cent. The taxes are liked
for six years ia advance, so that the
people can know just how much money
they will have to raise.
An important discovery has just been
made at Paris by N. Belief, whose in
| vention consists Of a voltaic pencil, by
| the use O. which designers and draughJs-
men viii be enabled To dispense entirely
Wi y the aid OF the engrsvsr Beautiful
paOOis OF Autographs and etchings have
been obtained by The effect of a vOltaiC
arc produced q the point of an ordinary
lead pencil. The inventor has taken out
patents III various countries and COM
pany has been formed to carry cut the
process, which will soon be placed before
the public.
In his True Law Of Population u
Doubleday points out that population,
are universally found thin in pastoral
countries where the food is chiefly ami.
NAL denssr where it IS mixed still
denser where vegetable but pIenteUus
densest of ali where 1t is vegetable and
scarce" The natural inference is that
in the plethoric state productiveness Is
arrested, while In the deplethOric it is
reinvigOrated. In the poorest times
Irish families subsistiBg on potatoes and
meal averaged seven, against FIVE in
England and three in France. In rice.
ca ing countries the population is dense.
NJ. Reco1don, OF Paris, has been man
ufacturing illuminating dials on an
emit, ely different principle from those
produced by chemicals. His device is
A Geissler tube containing a gas which
gives a brilliant light IS placed on the
dial a battery about the size Of a thin
bic is attached as an ornament TO the
WaJC0 C0dln anu miniature INDUCTION
coil is also hidden in the latter. When
it becomes desirable to consult the watch
in the dark, a spring Is pressed, the cur
rent passes into the coil, then into the
, tube, ami Eliminates the dial The
same principle also applies u the iilumi
nation OF clock aces.
NJ. Z-ch, Ot~Par;s, says that nom tbs
grains of raw coffee there may b. ex-
tracted q beautiful green cOlOring mat
ter, adapted to all the purposes of cuOE
and confectioner, and which will prove o
gre at value, inasmuch as the numb r o
green cOiOls suitable for such uses anC
which are not poisonous, is very limited
The crIOriug ~ alter l. obtained 10 the
f following way: The coffee grains ar
crushed and the oil Is ex racted by mean
OF ether they are then dried and sgitaUrC
With the white Of eggs so as to rOrm
SORT OF paste. and the latter Is exposed 10
s-vsrai days to the air. The presence @
, the whites OF eggs then determines tn
, i. pearauce Of az emerald green.
, 4 Charlie boss Mystery Cleared Up
$ Springfield INass.o Union.