The sun. [volume] (New York [N.Y.]) 1833-1916, 1899-07-16
VOTES on SCIENCE AND INDUSTRY.


process of seasoning wood and timber by means Of
electricity-known as tho Nodon- FretoneAu process
are pronounced by our Consul at Freiburg to be in
the highest degree assuring IN respect to its
morcal value. the practical eject of the treatment
being TO eIpcl all sap and replace 1t by insolu-
bic matter which will not putrcfy and to increase
the tenacty OF the wood and Its resistance TO yert
teal compression. The positive pole Of dynamo
is in this method. connected with lead grating.
upon which the wood TO be treated Ia placed; and
solution, kept at uniform temperature OF 1902 F..
by means Of steam pipo underneath the grating, Ia
poured into tho vat almost to cover the log OF
wood. III tile public demonstrations made of this
process tho solution contained 10 per cent OF boral
per cent Of rosin and thrcefourths Of por cent.
Of carbonate of soda the boraI being nutseptc and
the carbonate of soda helping to dissolve the rosn.
porous tray. having as its bottom two sheets OF
canvas with felt sheet between ia placed over the
log and above this is sheet OF lead connected with
the negative pole Of tho dynamo; tho current 10
turned on the solution drawn from the bottom, the
sap driven ont and its place taken nv the borax and
rOsn
Tests made with the explosive kallenite
show that it ha' some properties 81 marked
superiority TO dynamite Instead, for example, ~
being largely composed of an inco,nbustiblo bnso
like infusora earth. eucalyptus leaves and ti.treo
bark arc used. these containing large quantity Of
gas. and their combustion add M to the force Of
their explosion. The whole compound. in fact. is
exposive. and this II is claimed. increases it's efc
ioncy aud economy at the same time. In some
pcriments at Sydney. Australia, as noted in the
Mining Journal. four holes drilled to n depth
of sixteen feet. and each was charged with twelve
pounds Of the kallcnite the charge fired by
electricity and disludged with comparatively slight
upheaval some two hundred cubic yards of stone;
there was little noise and hardly any perceptible
smoke or fumes These qualities. il is thought, in.
dicrtc that kallcnitc is desirable explosive for
military well az for mining purposes.
In paper read by Sir Marcus Samuel before tho
Society of Arts London, the main point VI differ.
between the burning Of coal and liquid or oil
fuel was briefly pointed out viz: That while coal
remains quietly in it's place until it is burned liquid
fuel offers too small surface to the air when lying
in tank to burn with so much heat as is required.
on this account having to he sprayed out in small
particles to augment it's surface. If. however. tho
oil s sprayed mechanically. the rush Of cold air
chills the spray and many of the small drops reach
tho funnel before combustion has taken place.
thus producing smoke and SCOT. Now. by heat
ing the air we'll above the burning tempera-
turc Of the oil before II reaches tho spray
this. of course. Is remenied and combustion
takes place freely. In this heated air system.
continues sir Marcus the oil Is forced at about
nifty pounds pressure through Kortng sprayer into
the furnace In this spraycr the current Of oil has
10 pass a thread which gives a rapid turning
m,, a. 49,. T., a.. 49, 49, =, ,,,, Wv
guiding plate at the back of tho furnace returns
along castiron ribbed plates which heated by the
flames above It. aud meets rnctanEulnry the
Of fine spraycdout oil tho air being heated to about
",' q. ""'' -, .,' NOV, ~ Wv 1Iia,, v.
"','" - ~, :, ', t, 49,,
~, - 80 80 90, :,
w.. A. ,.,s,s, g.. T., 4 :. 49,. ~ g.
-" nun '@'1 ''''' a. '''"' "~ ~ '"' ~ ""'
somc OF the present methods Of astronomical
photnprnphv are of peculiar value to the scientific
,vre.,rn,or NJ cur;oua ir..rrs. "a tho amateur
Thus tbo examination Of .he phn,oyrophi, ,,,,tos
c,r,o+ ir co,scaucrcc Of t LARGO MN, bcr 4okor
he at once undcrtaken so that II sometimes han.
,o,s t,,,+ Iro ,f,cr NOW stor h,s ac,rn,ro1 frou
,h ro,v,,s t.. rr,se,ca an tb. na,,.ivoe g. djscov
ercd Such n case AZ This 10 reported a. hariny no.
.u-ra1 Within n abort .irc Mrs Flaming tho ac.
comp,ished examiner % all the Drepcr Memorial
,rotocronrs ~ tho Harvard Co1lcg. Observatory
h'S no" '"",'u t"N' VIC "li' W .'">N was
i''"''''" VI. ','' '''t u, 4" ", II '''' o'
iaN' year. Inns nv" ''' S','"''" ~ Va, ,',''eia'
Nv" VI 'as' "'a's' a',''''" o''si''
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=, =,
va ~ mn '' '' ' WAN "
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u"'' -" Va SAM !" '''''' ~. ' ~ ~ '' Va
tue "'s'n'RF"''"" ~ WV" t""'A'''i"'"s '''''HrH
"Se' III Vi" ''"So'r. VI p'''' ""rNT' NV W." vi
sue" ".is' fnNe" WIN ii"'e an" sa'iu N 81" 10 20
e'"''"''' All" ,"r'e~"', r'A,'''en III ,n' "pSh'Sn
""i'"hS' anu ~ S'"o" " w. !" al 'sSen.'ai
P"'h.4' superior 10 s'''e VI '"e 'eS' Impure" ny
dranIl' ''meh'S TOT 'ne construction OF oui'er.s'
or"'nS' ,A"AS W .s'e."S' al" e,'" LOT r"o's
"he'""' i"r S's ''n' 'ieS vi io' '"A'nS '"o "'"Ai
nat 'r"'lcai rooi'
IN, ,o,or -, o,u,rirr,, road before Tho prt+,sh Tn