New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1877-03-03
SCIENCE FOR. THE PEOPLE.

containing small hall Of guucoon The cotton i 'heh
washed carefully several successive waters Vne VINO
be purc the color will wash out of the cotton me "'
,nains artificial colorug probable To test the re-
maiuinr conr a few drops Of strong liquor ammonia arc
let s9 on M, me e made vita iucsue If the cotton
violet. oTchI has been used II sieeh'sh ""ei''i'
Juice.
Moro than fifty years ago Sir David Brewster
in HE charming essay Natural Magic called attention
20 the behavior OF fluids Imprisoned in the cavities OF
,oin crysals He showed that the huil in some eases
a, ,a,i Is not water Other Investigators added to the
proof that 1t Is lqucaed carbonc acid NJ Geisser dc,
termucd the pyescuce of that substance IN mihe M
cavity by It's gaseous spectrum. Very reCGhHS ,1 w,
Hartley o London has @ a .1 and wsr Are
both present IN cavity the liquid hqass dp b hn De-
termned as that OF carbon dioXde'
Two popular books on the Challenger ex-
peltion have recently appeared The best feature OF
Them is that they really popular in style though con
viewing con siderable amount Of new Information one
of the volumes contains the narrative OF two brothers.
told by one OF them who were found living alone OH
Inaccessible Island. The American public il likely 10
reap full share OF the advantages OF that scienunc
cruise Prof Alexander AgSs WIG tb Tsrc Objects
onnd will doubtless proiare report upon thcIn anu NC
Is quite capable Of making suoh report incles"e W
the general reader as well as To the specialist
Prof Robert Mallet of London, recognized
authority in earthquake and volcano literature mas
10 the mechanism of volcanic erupons Taxing LOT MS
ext an account Of the last eruption Of Tr0adynsjn
volcano In Iceland he refers TO the earthquakes "hch
preceded that event evidence m support o us views
sumo vent Of Il measured supply OF heated wateT-t G.;
eeyseF-and the products tlecal o Toicdho oi s'ii
energy Prof Mallet proposes t visit ice't tulS s t
oud Ssrerian whether facts OF The case will bear out
lhS hypothesis. according 10 which geyser may DO
converted into n volcano
An imitation OF heeSwaX is now sold III Ger
many in place Of the genuine product ana Se'efai c
lin druggists have been victnized by the fraud Inc
spurious article proves under analysis 10 DC % paris
ayrn aud 30 parts the compound Is cast III the
usual form cakes, AMI is coated win INN
layer Of the real article The fraud can be detected by
method which recalls Mrs Partngtons famous fccpc
inr mnnS M Fam did not Iecoect which result would
follow IL IL SAID that there is 40 such ubt Hout he
- de- staIorS plarmaco ncal strength; Will sink
The genuine wax will foat. A. yet tie ctl H,'s Wiz
ne products o. the hive III thus country nave pfea o
nduteratOn honey with slyceIlne OF sugar Oh DOLL
Marked changes have been taking place IN
the spectrum of the new star III tyGnus WINE ltH
gradually fading At last accounts the spectrum was
much like that OF certain stars III the same region OF VIC
bcayeus THIS Is the more remarkable since the lew
stars having such spectrum are not found 'isc"neie
aud cannot He classified with the rest OF the stars whose
sctrs fall within four well recognized varieties
I,d With Great diligence. Konkuly, the director OF
an observatory in Hungary recently report his obsG
vaiiOns The speciIa Of 100 sis cidSsued unuei No
g,is system Of White. yellow. ard red ke l@r;s IS re-
ported as hayineo st It's bright bands 1t Is quite egi
that II our sun should iWdcgo SUI eh%dH h a.
fouc Of these stare there would be sudden olu 10 nu
nan Affairs
A marvellous capacity for recovering from
blows that would demolished other theOrsl has
been exhibited 10y Dr. BasIn. II his liquids had haIt
the fertility HE inventive genius, spontaneous genera
lion wc1!I have been fact accomplished long ago III
N m last series of researches he attained the production OF
" bacteria ia sterile liquid By adding to 1t solution {"
cau,,c potash NJ Pdstcur repeated the experiment ana
10 bacteria were enecudcrcd Dr. Bas'ian Gained that
much pctash Lad used, that the liquid had
been rendered alkaline This point was disproNcu ana
satisfactorily disposed Of; and then Dr Bastian claimed
tia, bis experiment vigorously followed, because
solid pofa. ana not solution had been used IL was
flen Shown by NJ Pastcur that If tho liquid solution OF
iotash were fst heated sufficiently, 10 bacteria were
otNcopcd after NJ use. emiiAi hh' ch.icNs SeePuHTW
ses of experiments by Or W. Roberts ana fI"I hul-
gave Ike rtsa-sterily The eN'dehce goes u sto"
that cau>tic solution 0 potash may contain ana Keep
alive the germs even at iOleraOy hgh oupIalUcs.
u astiu could ~ establish an uudss,dpe Instance
If TIC spontaneous production of haceIn no amount o
negative evidence in past governments woman " o. "y
weight. Hitherto hc has certainly Jailed III hs pnt nc
Las at al events demonstrated that bsc"ra or their
germs a. keep alive under strangely ADVERSE e0houoiS
Most people who have experimental upon
their gasbuuers al all have tried inc Plan ~ tng over
he burne. small additional tip This tip soon grows
hot and 3 larger hanr, with light, is Obtained Ii
Ia. been ARK led however that the additional light thus
obtained was chiefly dhe 50 the more rapid flow Of the
heated gas and that thus there was no economy at
ialned The experiments % d. Karl unemann, detailed
in Ltebigs AnRqLs, will start anew discussion on THE
subject; He uphods old idea that the light Of flame
IL usually contributed sOlii not gaseous Particles OF
carbon This Is in OppOs ~ the views recently enan-
Gated 10y Dr. Frduklani II the cOmbdstible matter be
diut.i with interior gase DR. Husynaun says, IL win re
qtile Lig.cr heat 10 make II luminous. A pIaCticA
i'ilh ~ m ii G lie se Of metallic bnrncrs The
Df "A
tue, The ordinary Iron burner lie advised ny raising
feuperaturr ~ the issuing and oil the burner
marked Increase OF light obtained, and this' II Is pos
itiycly stated, done without Sttrr HOW OF the
rls Tie hgle, results attained when the burner
MAS heated close the ufhoc. But DE- Hueulann insists
tha; the extra heat for the burner must not bC contrib
Tf.d nv the luminous haiue itself lie declines u enter
into The economical question rs TO whether heating inc
GU thu obtaining brighter light is or Is not prcnt
able operation
Prof. r. A. Proctor comes to the defense
OF ms that Jupiter and Saturn are hot planets
This view has been attacked by Prof Voge! in
describing researches the spectroscope az 10 tho
lint OF those planet5-ItseaEcbas which have won for
Prof Vogr a prize from t.e Copenhagen Academy. The
attack was based on the evidence that the spectra Of
hands aad lines those planets similar to those OF
our OWE atmosphere, occasioned by the presence u
aqueous vapor Prof Proctor argues with force against
the conclusion thai aqueous yapOis constitute the chief
cuvelopo of the larger planets According TO the ac
ccte theory OF their formation, those planets
tialy much younger than the earth, and they, Prof
Proctor shows b. estimate have not yet had uue 10 cooi
1her enormous bulk. Their Lack Oi density can best be
explained ny supposng that their condemnation Is stir
prevented Nv internal heat Such atmosFhcrcs a. thes
evidently have would be- unless continually expanded
%, heat, compressed aud sOliiied by the gravity OF
n,a sr,al masses The couielts present aspects and
cai srs which c3G Dc explained best II we bectc mat
hoy exhibit the surface i G-rGShng heated varnIr
c.eudkc s;nalts These cioudS aua pcts Dett no
relation 10 hc diu"il or annual exposure OF inc Sufcc