New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1849-03-08
SCIENCE.
liens Of sc,entinc Iuteliiscnce"..No. X.


lGesped for The Tribune from the latest Sources
The Melt is stated in late London Scientific
journals that Dr. Bslloslo,zky. about 10 undertake
poring tour into the Interior oil Africa Ills man
object IA To make attempt 10 settle the dispu
ted Aphcs question OF the sources OF the Nile
lie was 10 leave sucr for Alden about the 2d OF Otto'
ber the Ess, India Company having given him pas,
ssse Of their steamers Inc plan L. 10 proceed
from Alden 20 Mombss the East coast OF Africa IN
about 40 oi south latitude and there or In Its vicinity
make arrangements Tor travelling into the in'eroI Win
q native caravan OF oiherwiss.-u anticipated hat n
,ouypev Of 700 or miles from tho coast In direc
zion between w. aud N w. will bring the Traveller !,
the edge Of the table land of Eastern Africa At the wa
Ter parting between the basin OF the Upper Nile snc
that of the Rivera Ludd on and ssbsk flowing east
ward into the Indian Ocean
Mines a. 1asfraiia-Ibe london AhcH0UD.
rsmsrks that the silver lead mines Of Glen Osmond
bcios vigorously AMI successfully worked and % the
Iroductveness OF tbs contiguous property OF Wheai
Watkins 10 also to be added like pfoductveness oi
Whcsl Gswlef, sso adjoining The exports OF lead
and copper from south Australia Tor the year lei
have been declared ID semi oinch hepotto DC mo'e
than $4,000 pounds.
Frpsdlff0a INTO AHsirdha.--A new Scieuiihc
Expedition into north esstern Australia 10 projected for
May next to te under the direction OF Mr. Kennedy
Tue region 10 called the York Peninsula visited by
chhsrdt on his way to the Gulf Of Carp n,sris Mr.
Kennedy procetd de from London To Rockingham Bay In
iso South and Il 20 travel thence by land 10 Princess
Charlote's Bay and Cape York keeping the most con
yeniept distanga from the coast lbchct down 10
coast Of the Gulf of Cspen,srs to the Water Plse,'
10 ASCERTAIN whether that 10 the estuary of Leichhsdts
river Mitchell and " So TO follow up to the junction
VI the Iypd The expedition then goes w ; w to
the river flindere the purpose OF sscertaning s
source and from II will attempt to connect the journey
with SIR Thos Mitchells discoveries In 1916
Platinum Dascoreged ~ tie AlpS.-Platinum hAy
lug been discovered IN the Alps by NJ Gaeymsrd, the
Cous ener al des Mines OF France has authorized re-
searches into that part of the Alps the frontiers o.
~ nf ka str
coll tits expected that deposits OF the precious meta
will be found In several localities
Ne~ SAFETY Mining -LaRteya.-Mr Crane of Bir
minghsm Dug has invented a new style OF Mining
snterp which 10 adapted to burn composition csndi,
that re auire no shutting The principle, however can
be applied 20 oil lamps il any party prefer the subsu
ton-The front Of the lantern 10 made Of strong glass
the back of polished tin tha two sides of wire ssuzt
sodered to tho framing. having 30 sper'ares IN n
sQusre inch OF surface will do c0arser but the size
stated 10 considered the ssfer over the wire gsuze
sdes are fixed of tia hinged to the top OF the
lantern which entirely cover the sides. and are kept
tsst BY email hssp the bottom The lower edge OF
sch tin coversde bent ward rest the iran
ingso that the Tin plate may he kept at distance OF
OF an inch from the wire ssuze Sufficient space Is
provided IL allow OF the OF air Tor the cup
ply OF the light No direct current OF wind can have
any effect upon the light because there IL no admission
ia,o the lantern but obquey At each corner The can
e Is held between tour short wires sOdered IN toe
dish OF movable socket, The nd IL pierced with t~o
rowe Of hoes through which the hestei af snd snoSr
escape and 20 the top Is hxcd large ring, by which
the lantern ID carried and hung up This ring 10 kept
cool BY q simple but effective contrivsncs piece OF
tin bent into the form OF inverted cone sodered
inside the lid. which the hot ascending air t.
dow toward the aide, whore 10 immediately escapes
through the openings. To prevent any inismmsole
gas entering through the hid circular disk of wire
Gaufs soldered inside the rim Of the dso that
sas enter but through the wire gsuze; this wirc
ssazs win never become red.hot. so that no explosion
cen possibe ccurThis 10 certainly very Ingenious
no Ices than simpe eossrivsnce perhaps better
suited Tor mining purposes than the word.kuown In.
venton of Sir Hamphry Dsvy. However IL needs
sutable trial Of merits and defects before its adoption
10 any extent can be recommended shall see wins,
10 to come Of 1t hereafter.
A Gas-ligh MoRuor.-A patent, 1t is said has
recently been taken out in England tor measuring the
amount Of gas consumed ic each burner 1t consists Of
circular valve enclosed In box which placed before
the burner through which the supply furnished The
buruer 10 thin plate OF brsss perforated In the center
and weighing only about hteen grains, and 10 quite
oose In the chamber which contains IT, The mode (
s operation 10 this: When the pressure Of the gss
through the chamber does not exceed certain liked
amount the supply 10 the burner IL such as to prevent
any waste OF smoke but the nomen; the pressure
exceeds this fixed amount the valve 10 raised to tho
top OF the chamber, where the surplus 10 cut on By
the closing Of al the spertures through which the
gas passes-and what gas 10 requisite 10 maintain the
light rusbes through aperture pierced In the center
Of the valve the sse OF which regulates the consump
tioo The instant the extra pressure dirnnshes
TO allow the gravity Of the valve ts force The
valve falls back to s nrst position at the bottom Of the
chamber