The National tribune. [volume] (Washington, D.C.) 1877-1917, 1893-07-13
CONVERSATION CLUB.

OcaIa, Fla.
CONVERSATION CLUB.
| What the C. C. and Guards are Thinking and
Doing-Prize Paper and Prize Winner.
| PRIZES OFFERED AND WON.
| The offer for the best paper, each week. upon
| any subject in which the c. G. is interested. is
standing offer and the attention Of G. c. members
is invited the subject. The writer's in forward
ing papers, will please state whether books, or their
| equivalents found in THE NATIONAL TRIBUNE
| premium list, preferred.
A book has been awarded to John NJ. Murphy
| for the following paper on The Spectrum;
| THE SPECTRUM.
! doubt not many are interested in the natural
sciences. Consequently have chosen the spec
trum for the subject Of this article.
The initial letter of each word OF the seven pri-
mary coIors spell The mnemono word yib gy or.
| Violet is refracted most, and red least.
| The speciroscope is any instrument for examin-
ing the spectrum. The inplest form OF the spec
troscope ~ glass prism.
| When a sunbeam s received through narrow
slit and transmitted through n prism 1t Ii spread
| out into rainbow OF colors; the solar spectrum
| forming the seven primary colors-vioiei, indigo,
| blue, green, yellow, orange, and red.
/ What receive from the sun is termed solar
energy II reaches us "a heat, light. and chemical
rays, varying In length from about one eighty
thousalIdths to about one eght-thousandtbs OF an
inch.
The Longest are the heat rays. the shortest the
|
ate ones, varying i'll length from one sixty-tho
santiths TO one orty-thomsandths Of an inch, the
red being the longest of the light rays and the vo-
let the shortest
simple experiment will iIlustrate these facts
! When a cool body, such az poker Is heated in
the fire the rays it first erns invisible; IL we
look at it through aprisfn1we nothing, though
easily perceive by the hand that it is radat
| ing heat.
dulI-red color; il we now look ut it through the
prism the red at the red end OF the spec
| trum. If heated more highly, and we continue To
examine it iir ougis the PRISM we find added to
the red orange, then yellow. then green, then
| blue. then indigo then violet When the poker Is
| white-hot all the coiors Of the spectrum will be
emitted.
II after this Stage Is reached the substance allows
of greater heating it will give out with increasing
| We owe the discovery Of the prismatic spectrum
to Sir Isaac Newton. Or. WoiIaston. In 1902. dscov
cred there were dark lines crossing the spectrum;
afterwards Frauenhqfer. an eminent German
/ optcian, carefully mapped the piainest OF them.
He also discovered attlie spectra of the stars con-
tanned similar lines TX -
| But the explanation of these lines is due prnci-
| paly 60 Kirschoff. who showed that II certain
| metals burned they will produce bright bands
directly corresponding TO certain dark lines on the
| Here then is the secret of the dark lines the
suns spectrum likewise on the stars speetra, Tor
the stars are suns though immeasurably more
distant than our sum,
"Vapors of metals and gases absorb those rays
| which the same vapors OF metals and gnses them
lines, was however, first proved by Baifour
| Stewart.
| Hence, we conclude that the ainnospheres of the
| sun and stars contain those metals and gases in
the form of vapor thai are necessary to form con-
tinuons spectrum
That their aimosphcres contain different metals
In state Of vapor leads us to the reasonable infer
ence that the sun and STARS are in highly-heated
condition. which inference 10 we'll founded as all
other known facts sustain it.
The rainbow is an illustration OF what the prism
shows.
c. c. COMMENTS.
Will some member Of the C. c. kindly send the
| answer TO the " Bishop of Oxford Puzzle" to Mrs.
G. b. Spalding. 1908 Pierce street. Sioux City Iowa
| 1t appeared early last Spring-perhaps earlier.
| viii someone kindly inform Lou j. Finstra
o53s Calumet avenue Chicago, ILL.,. just how to
join the Illinois Guards. The writer would be glad
To c. G. brothers and sisters Who may visit the
Worlds Fair.
Maude A Lewis. Businessburg, o., was so
warmly welcomed by the c. c. on joining the club
that she sends number of new enroilments, and
hopes they will be as happy in receiving letters
and autographs ms she has been.
Carrie DeVoe. Shelby. o.. expresses her sorrow
the death Of Nettie May Pink, one OF her
earliest c. c. CORRESPONDENTS. who departed this
life March g. 1898. although she did not receive
the news for weeks later. Carrie says:
'she WAS a good Christian girl and member Of
the Episcopal Church. May God comfort the
bear;-broken and bcreaved mother" AL the
@. @. will join in this prayers.
He can be found AT the Journal office and Will be
pleased to see 9. C.'s aud Guards visiting the city
lie says the G. 9. columns alone are worth twice
the cost OF THE NATIONAL TRIBUNE, and he cannot
content himself on Sundays without it.
Mabel A. Woolsey the G. Q. invalid. now re-
| siding AT Orwell, Ashiabula County, o., hopes
Heaven may bless aud reward the Q. G. who sent
her dime each for June, In response TO the request
OF br. and Mrs. Inez Wightman: Mrs. Wigh,man
writes the Editor that she has the highest recon-
mendatioBs from Mabels pastor and physician,
| and trusts the c. c. all will remember the patient
| little invalid by monthly contribution of IA dime
each. IL not in some better way.
There WAS a happy C. c. wedding at the home of
Mrs. C. j. Flynn, OF Baltic. when her daughter.
| Marie Flynn, welded to Il. q. Hinnup, of
Garden City. Kan. Rev. Father Syriet officiating.
The bride was beautiful in heliotrope elk: the
delssohn,s :" Wedding March announced the
TRANCE Of the happy pair Alter the ceremony
Mr.. and Mrs. Flynn passed safely through ey-
| clone of rice for New port and the Worlds Fair.
| have in my possession two relies which would
like TO sell. One is n iandnyarrant. made Nov. J.,
Is49, signed by Zachary Taylor. The other Is The
Christian Times pubsbcdt in Chicago, 1853 1, is
yellow with age, and soft ~ ass, SIX ILL -,
| Mrs. G. A. Baker will lot her rooms TO G. c..
visitors the Worlds Fair for 80 cents apiece for
two, three, or four persons In a room. She has a
Break served TO those desiring III meals in the
same block when desired. Take the Cottage Grove
cpbe. going south To T'ifirt y-fonrth street, and,
arriving there. you vii. find S4ia Vernon avenue.
Matte Elliott Greensburg, Ind.
EpIrH's c. c.. CORNER.
! have got a @. q. corner in my room, and want
to pRkea O. g. crazy quilt for my lounge that rs in
the corner. where aad my friends sit and look at
my q. G. souvenirs Now, will the q. O. girls, boys
too II they will. send pieces. either silk
satin. or velvet? would like each one to work
name and address en- pieces for me, but II they
cannot will do the embroidering for them. will
give either sheet music dook rs prize for the
fret collection sent; aiso. fer the pretiest piece
receive, either painted or embroidered.
Loyally-Edtil M. Haines 6l5 Bond avenue.
East ST. Louis. Ill.
A O. O. GOES ABROAD.
FRIENDS OF THE G. c.: ] am going TO visit many
interesting places both in Europe and America this
Summer and in view of the fact wish to say few
| words TO members OF the @. e..
First. wish 10 thank the Editor OF THE Ma
TIoNAL TRIBUNE and editors OF this Department
for the space kindly allotted to me and the Con-
yersation Club in general. l consider 1t a rare
privilege that the young people OF this country
have space 10 publish their letters upon different
topics in the columns of paper which consider
r TO be one OF the best edited in The country.
Those W ho have written either letters or aato-
: graphs will answer when I arrive home again.
Wishing yon all delightful time. remain yours
g for the cause,
81 Frank n Kemp, Haxleion. Pa