The citizen. (Frederick City, Md.) 1895-1923, 1895-06-14

aru-rl. lie NIX ll- E--Ul. ana az
-ya. moreover. wa, formerly regarded
s. troseu NJ "azcte" Concerning
Ptaa..', ga Tie London Laaee- a.ke.
Gould il possibly have teen the con.
eep,.ou purely % highly imaginative
sld poetic mind. or mad Edgar Alien
p ,-s,ned rom friendly Yhilos-
apEe- oftae exi>,elce o: . ga lighter
,aal hydFogeu aud wh0>- discover
l. may Rot have reached : ira ho>t
II Conceivable causes
some startling results. stated Lord
RAy.v.EL The other day AZ the ROYAL
Institution. have been obtained ia IL
ve>,igatiug he s=r>itiv-ue>s II the ear
20 sounds. By one method he found
mat The ear : capl6.e - r. poudiug TO
al amount II condensation and .are-
faction II the az equal - one twenty
mi.lonth Of al atmosphere. though by
qth-F experiments The amount seemed
- - a tenth less. \ Point 81 some dit-
1cu.-y ! how 10 We know the direc.
ton q sounds. By ;r!sl be found that
pure sounds. such a. those Of 2 tuning
FORK, tel their direction with certainty
only when - the right or eft: while
with other sounds. such - those Of the
voice or Of c.applug The hands. the ear
could easily Judge The direction, wher-
ever il was.
Nearly forty thousand tests by the
forestry division u the DEPARTMENT Of
Agriculture have established these
facts: Seasoned linbsr j twice s.
strong a. green, we4keus with absorb.
ton q moisture. large and small timber
have equal siren 9Th per square inch IL
equally perfect; knots weaken ! column
s. well - 3 oesm; long-Ieafed pine *
stronger than The average oak: blend
Ing dos not impair timber.
The gardens q the London ZoJ,og-
lcai society, opened nearly seventy
years sgo. covers only about thirty
acres. but CONTAINS magnificent col
lection q about 2.j1l animals. In Ber-
lin, the portion Of the Thiergardeu
given up 10 animals embraces about
sixty acres. accommodating about
l.5Qn animals. In Paris the animal
section OF the Jsrdia des plantes has an
area q about seventeen acre-. with So
animals. The National biological
Park at Washington, the first appro-
priatiou for v mich was made only five
years ago, has an ares Of nearly I5-
acres, and the latest reports gives the
number lfanimal> a. jlu. u which 10
are o, large slse. Several OF the older
collections II the United States are
larger than this in the number Of
specimens. That at Philadelphia.
with grounds Of about forty acres. has
81 animals; that At Cincinnati. occu.
plying s. acres. embraces SO animals
aud in that Of New York. assigned 70
some leu acres Of Central Park. are
Kept about 700 animals
Some promising discoveries seem TO
have beeu announced AT recent meet
iugs Of the Society OF Physicians in Vi.
enna. Prot. Wagner Won Jauregg has
found that NEGOTIATIONS Of tuberculiae
produce great changes in cases Of in
sanity; and Prof. Albert, that trans
fusion OF blood aud the sub-
sequent high fever have caused re-
markaoie Improvement in cases Of mel
aucnolia. DIR. Riehl has been iuvesti-
eating the PriHlH}d 65coHicq. one OF
the most beautiful of the prlmroses
aud TO him something more than "a
yellow primrose. He has succeeded
IN extracting the poison to which
are due swellings aud irritation pro
duced on the skin by the tiny hairs of
the leaf and stalk, aud by infections 81
this he claims To have cured more than
one obstinate skin disease.
Although peat has been used TO some
extent for Illuminating gas in Ger.
mauy, Mr.. B. H. Thwaite has lust
made the nrst successful trial OF il for
motive power. An engine driven bv
gas from brown peat developed half
Inc power obtainsble from au equal
weight OF coal, and as the gas generator
mas no gTAtes, the large amount of ash
gives little trouble, while the bulkiuess
oil the iuel may Dc compensated for by
making The furnaces somew hat taller.
rs gas generator and gas engine
VIII enable jewellers in peat districts TO
OBTAIN power without coal and without
. BOILER. As the ueat deposits OF Great
Britain alone are estimated 70 cover
$4,000 acres 10 an average depth Of
= ieet, practicable means u utilizing
the energy stored IL this form i great
y 10 be desired.
II the light-hesrted Partisan mas lot
reduced amusement 10 scle nee, he
has 81 least made the contriyances OF
science add not little 10 his pleasure.
A little shower OF paper disks 1T an op-
era 10 January, 1891. tickled bis fancy.
aud became the germ Of new indus
Try. Confetti Is now cut from fiue col
ored papers by a special machine. in
which system Of So cylindrical steel
punches penetrates IS sheets OF paper
II cut, the punches being 50 arrang-
ed that the interval between each four
disks form star which is mixed with
the other confetti. The bits Of paper
are placed in a drum containing rapid
~ moving helIces, which separate
disks that have stuck together ID cut
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