, 1879-01-10

pointed out TIA. The most rsfrnpgble line OF
pytlrnrcn in the solar spectrum, H. Il only Seen
IN laG"rntor' governments when avery high ten
ncraturc IL emplo,r.I; and TINT It va ap:cnt
from tho solar protubcrnnrcs during this eclipse
nf 1916, although tho other lines Of hydrnuen
we're photographed This line, ufsu, ts scosnc!lent
With tho ttrcnecst limo. Of indiuin, a. already
recorded by Thalcu, and may, bc photographed
b. vo1atfliztng tndum in thr Electric nrc. where
Al palladium c1,arccd with hydrogen furnishes
4 photograph in which none Of the hydrogen
ifncs arr visible: Ry employing very feeble
sparls At ytry law pressure The F Inc Of hy-
drogcn In the green "a obtained without tho
blue md rcd lines, which are sccn when strong
CT suirk Is ute,l, 50 that alterations undoubtedly
take plnre n the spectrum Of hydrogen similar
concluding this portion of hts rancr, Mr. Lock-
yer states that he has obtained tvitlcncc leading
10 The conclusion that the substance giving tho
not,,revcfscd line in tho chremosplicrc, which
identified Will, any k,,o~ ii form, NJ mnt,cr, nnd
also the anbxtancc giving the i.i14 or eur0nul
line, arc really uther forms Of hydrogen, the
one inore simple tllnn that Which gives the h
ltre alone. thu other more complcx thun that
rhl.h gives the + 1inc alone.
brought furwsrl hy Mr.. I.ockrer are Of ths
highcst inheritance mud value. md that they
will hava mich Influence on tho further desel-
op,cnt of spectrum analysis. to which he has
n'ready 40 largely contributed. tut his aTau-
mGnts nrc Of q character. 80 totally different
irum thosc ordinarily dealt With by chcn,fats
lint they viii hesitate for tile present 70 regard
them rs proof Ut the deeonposttfon nf the clc-
Mentt. until either they nrc Mssus cd by epmpe-
tent phsstcts that fhey cannot b. explained hy
any other rq1talty simple and probable hypothe-
Aa, Or Until what Afr. j.'xkycr has fotcshaauwcd
N tnkinR place to euch nN extent in otflPr
woritla l.as been realized hcyond question or
cnyii In our own laboratories. II has been s,lg,-
gcstel tt'nt The ea,ne molecNfe may BE- capa-
bic of vibrating In different Taya at different
Temperatures, mud this of yielding different
sprstra. Just as bell may gtre uut different
mira when etr,lrk In different ways. and. al
though Mr.. f@kyrr Ina rer1icd to this oblcc-
tlon, It ran ecnrccy he regarded M finally tts-
poEeh Of. The fact. hoRGycr, N Mr. l4ntkyer
has pointed out, that The change from tf.o spec-
trlll of a rnrnp0und To t1lr lowest temperature
spectrum Of ita netattc element Is Of \ similar
character to- aud rvcu less In tlcTreo tlIan, the
change from. the Invest Temperature spectrum
oI the metal IT, thu aucesra which 1t furnishes at
higher temperatures ltGs not apncar to favor
auch hypothesis aHd from the similarity III tho
phenomena II Ia difficult ia deny that III bott1cascs
decomposition does not equally take place.
Prof. 1oung's observations on The injection Of
particular lines into the c,ron,ospfere during
solar storms aiso difficult to reconcile with
this view. and II The conclusions drawn from
prcvlnis researches are correct, It also docs mot
account lnr the short-ino concItlcuccs which
led AfF. 1.ockver to ffs hylnthcsls.
Chemists are careful to tcarh that what arc
at present regarded as elements nrc not ncccf-
anrilY simple bUdlcs, but merely snbstnnces
which they arc unable to decompose, or which
they have no special reason to regard ~ cor1-
pound bUdlea The remarkable relations, both
In atomic weigh. and properties. existing be.
tween tnany Ut the elements tend, indeed, to
fhow that ther ara reta ted In tho Mnuucr Mr.
LoekJcr supposes.