New-York tribune., 1877-07-07

itiLn To-
30 represented clearly on q ,lal
Two french astronomers NJ. Andre and NJ.
Ahso viii visit California next year to observe tie
transit o. Mercury. The transi, occurs MAY g. will
pe Wis Die al over the United stato the duration o the
sanrts prssayc the suus disk being about seven
hours aud thrce-quarters
According to a Canadian correspondent
Mons f. NJ. Piret. Belgian mining engineer, has
tust made successful aud important experiment az
one Of the iron iouudrcs Of Montreal lie has saws
the writer. in less than minutes smcltcd LOO |
pounds OF the titanic OF ST. Urhan, Province o
Cucucc, giving entirely purified ana snend.u
gray-coorcd cast iron, and notWithstandng t9e ia
condition than before tae opcrtion No details given
10 the s. oi Tie new method nor any Indications "S
~ whether II can be applied Ga "a iar.e scale
The dangers to ships of war from q night
attack Of torpedocs suI stimulating inventive skill
Mt NJ f. silas Of Vienna. devised another mode oi
Illuminating the whenever the approach OF torpedo
launches is possible His plan consists Of shell contain
ing bottle fun OF liquid capable OF giving "n phos-
phuretied hydrogen. wcttod sponge surrounds the
bottle. which broken by the discharge from me gun;
sener,i,s rns when drives ont two shoppers, anu two
Streams Of illuminating matter are poured upon Ihe seS'
Mr.. Green and his assistants have been very
successful this year their efforts 10 stock the Hudson
with shad The total number OF slad hatched was
$4,000 or OF lrly three millions over sl
one of the flowing into Lake Ontario, All the young
shad were turned into Hudson. Meters, or male
shad were this year plentiful Heavy catches o. sh'd
were taken tins in the Huds aud the sh we're
between the SbId and thr herring also eanglt
TuOIgn equal TO the shad toy were superior 10 te
berrlns, aud prnyed an excel eut market usL
A new method for making looking glasses
has been put in practice ST. LOUIS Mercury Is not used
The details OF the method not wholly gwen TO the
public but IL Is said that solution containing nitrate o'
silver copper aud other ingredients Is o1ed over
the glass and when the settles and duesa mat
ter of a few mmutcs-thc work is complete Looking
glasses made thus with photographs IN thc nave Deeh
exhibited AT ST LOUIS The results OF The new process are
said 10 be excellent great cearncSs Of reflection beng ~
tanned. TIE new loouug-sasse VIII endure Iai more
heat than ordinary Ones without injury. Last Monday
al optical referred to in this column III
which it mentioned that mirror was used IN super
posing go similar photographs 20 obtain sicTco
sconc effect The device frequently used for drawing
purposes without mirror. In that case sneet OF plain
GLASS is merely set edge, original picture IA laid nat
on the table IL front @l 5'e ss, & m me- % onng
into the glass at an its surface the re cton
of the picture superpOscd on the drawing paper B IS
rejection rcvcrSes an nase lm1hlhs IL & ,ea q, ' b
two photographs placed thns eiuhot coa e. oG M
one that directly, can, however oe replaced u
fe doubly deced This done only remains 10 arran-e
apparatus SO th, tue images apiear sulS,"g,1 t
while sufficiently illuminated; and the stereosconc rehei
Will be attained.
Various suggestions are from time TO time
thrown out for reaching the North Pole. One enhu'i-
ast toposes 10 accomplish the journey in balloon and
now We are told all that is needed Is little gycer
Inc T. greatest obs acc to be overcome IN Afctc re-
rions is scurvy The specific for scurvy Is hmeuice
But the bu, Jackets prefer scurvy to imejuce because
tbe favor of t, latter is What is to be
dopei correspondent Of The London Tunes fances h-
has solved the conuudrum 1t is the addition OF glyce
iue To- the nejuice. which s thereby preserved in
nud condition. and free from iungol growts even IN
of Loaf sugar soHpcoa ot lemon OIL aud tncn e Cd j.,
rum of hot water and 1ud lhne3uce ana od Iui' anu
the North Pole must suurnder'
correspondent of Land and Water gives |
an account OF l. breeding OF Emus IN Scotland Tie
female bird laid all nineteen at intervals OF five
oays each Tie Matching undertaken by the malo |
bird The eus kept in large ned, in one corner
OF which the made. Upon April l. not very
auspcous Y, the cock SIT down in the nes hut until
the SIN ne allowed twenyfOur hours to pass with
out having the eggs all scattered round him outside tie
nest Upon he latter date he commenced to sit close
and from then tin May %. upon which day the FIRST
Young we're hatcei he never left the nest except on one
or two occasions when he took race round the Held for
about three minutes and then returned Nor was he ever
seen to touch during the whole period OF incubation
which last Tor h'y-eight days though both food und
water were kept constantly beside him Three young
were hatcned upon May o. and next day three more
one egg ready to crushed and two failed. He
had eleven eggs TO begin with. go two disappeared
bodily The cock naturally very thin after his long
fast but he ia quite hearty and is most determined
10 murder II possible. his wife, who pirttc ned of
tbe dav he commenced sit He las twice jumped a
four feet six inch which surrounds the hens encos
hut excepting beating her, harm has yet
beep done The young beautiful creatures, striped
br0wuish back-andwIit. WIN hleelY n0luel neSue'
ley are quite strong and growing fast They eat her
haze of ali kinds eagerly tnelr pareh = but are
specially PARTIAL to Pla'an ana CROW w. ,io9t penuiHl
bTtad and biscuit crumb mixed with oatmeal. lettuce
aud green's, upon which they appear TO thrive well
NJ Lamey, French savant, has started
novel theory to for the abnormal rise OF temper
atrs in the early p,rt November known here ashe
Indian Summer and in Europe St. Martins Summer.
The phenomenon appears to b. general throughout the
northern hem.pherc .Lamey that it can hardly
have its origin either the suns the earths atmos
pbere and suggests that be due - meteCrs which
nrodure first sudden fall OF temperature by cutting off
the SIMS rays and ABNORMAL rise resulting from
tbe reflect ON of the suns heat 10y the meteoIswan.
The fact that November mecors usually about
tue time o. 81. Mardns Summer gives some niue plaus
lty the theory, but - s hot Gear dt the mtcols
Do ,ctnav MSS between and the IN sucii way
10 produce any sensible effect upon temperature
decided improvement in water filters adapt
fng,fhe for wherever there are the usual Cruon nN
lures has recently invented Hitherto the cbicf oec
10 fiterng apparatus has been tnet The iupuritesab-
s,cted from the water soon clogSed the filter other
wise impaired powers ami then the process of cleans
tng tle uurn r was troublesome costly. In most OF
The old contrivauces the cleansing was attempted with
cold water with very Imperfect t. In the Kellogg
and Jennings filter tie purifying mater al is charcoal
secnred by seyes Wi;hiu large tunuar receptacle OF
iron. when the hter i foul IT be immediately
elearsed by draining through it the hot water OF