The Morning Tulsa daily world. [volume] (Tulsa, Okla.) 1919-1927, 1921-11-06


dozen years ago, when the micro
] acopic worm, but not the angle
wosm, had been worked with.
| From the Now York Times
/ what Ia called "a most most inn
| portant and far-rcachipg coutribu-
| ton TO cancer research" is made
/ known by Dr. Francis Carter Wood.
| director VI the Cohpubia university
! institute OF cancer research endowed
| by George Crocker. iu q report 90
, prcSdcnt Nicholas Murray Butler.
Doctor Wood states that two OF
Tho workers IN tho Columbia laborn-
tories, Or Frederick D. Bullock and
Miss NJ, u. Curtis, Ph. ~. both rank
ing as associate in cancer research,
! have discovered monua OF produce
ing cancer artlficinlly IN rats, num-
bers Of which are constantly used IN
/ Culumhias work OF cancer research.
after five years of hard WORK."
| SAYS Doctor Wood. "lfoCtprs Bullock
! and Curtis have finally shown that
! n whto rats be infested with the
| eggs of "a certain parasite ana kept
. Tor a period Of not less than eight
months. tumors win develop about
| the areas In which the parasites
are present. ana that these tumors
arc virulont cancers which rapidly
| Kill tho animals In which they start
! npd can easily be transplanted 10
/ others.
This ia not the first time that
cancer has been produced artifi-
cially ~ is juat li6 years since
the London surgeon Pott showed
that certain types of cancer follow
certain occupations in which irritat-
Ing substaiAes come in contact with
the body. The best known OF these
types OF cancer is the chimney
awceps cancer which developed to
such an extent IN England that laws
were passed regulating tho condi-
tions under which chimney sweep-
ing could be done.
Names Le-...s or r.:.cc..
'Othcr forms OF irritation can
Ger are tho well known Kangri bas-
Ret cancnr OF tho Knshmir native.
- bet<.nut cancer on tho inner
surface of the cheek among Maiays
ara Fillpinos, and the cancers fol-
lowing chronic Xray dcrmhtitis. IL
has also been known thnt u In pos
siblc to obtain n considerable num-
ber of cancers in animals by In
, breeding canceroua strains. but
, some years are required 10 get
/, enough stoca, the number OF tu-
, mors 30 obtained is not always
, large, and the time OF their an.
3
, that experiments requiring many
tumors cannot be planned.
F"Another means OF inducing can
Ger has been by painting the skin
OF an animal with tar. This expert
ment Is based upon tho observation
that workers In briquctto factories,
whore the skin OF the hands IN con-
stantly In contact with tar, not infre-
quently develop cancer Professor
| Fiblgor OF Copenhagen has shown
also that cancers can be produced
In the stomaehs or rats by feeding
the animals bn u certain parasite.
but here also the actual percentage
OF production is small.
I'm sthe method devised in this
laboratory, however, the yield Is
very considerable, over half the anil
mails OF n certain strain developing
cancer. Tho total number OF tu-
mors w&lch have been produced so
far iB over three hundred"
Doctor Wood quotes DR.. J. A.
| Murray, director Of tho Imperial can
Ger research fnnd, London, a noted
Investigator OF cancer, ne saying
recently that zone OF the great dis
advantages which retards progress
In the study OF cancer In the alb
sence of producing the dlseases at
VIII IN experimental animals"
with the discovery made In this
laboratory" Doctor Wood adds.
"th!s disadvantage no longer sz-
ists."
Doctor Wood reports the con-
structlon ~ a new machine through
which during the coming winter
viii be added new and important
facts 10 the very vital question OF
tho treatment Of cancer by x-ray"
ScW High Power N-Iiays.
There has been under consider
alton for some time" he continues,
, discussing experimental work "the
erection OF an apparatus for the pro-
| dpction of "A direct current az high
voltage in order to produce X-rays
] or unusual power, aR tho limitation
Of the commercial machine In eer-
tain modes OF treatments are OBJ
yious
THE matter had been discussed in
an informal way during tho last two
or three years with number ot
experts among them Professor
. | Duane and Professor Davis, and at
the last annual meeting OF tho
Crocker board lt was proposed that
% ] the accrued income OF the Bdndy
Z fund be devoted 10 the construction
p Of a moro powerful constant cur
p rent N-rny apparatus than had yet
q hcon attempted, with the necessary
equipment 10 permit ~ accurate de-
= termluntious ir physical units or mo
J exact quantity ~ radiation given or
by the N-rav tube
, after consultation with Professor
Hun Of the research laboratory ot
the General Electric company ana
, with Professor Duane, Professor Dn-
vie drew up tho design FOR tho APP
| paratus. Tho actual construction.
adjustment and working OF the ma-
chine was placed in the hands OF an
electrical engineer, Roy Kegerreis,
who had been connected with the
department OF physics and has had
n large experience in high voltage
I transmiEBions.
Many unforeseen difficulties In
tho obtaining OF equipment and ma
terials have, OF course, arisen, as is
usual In the construction OF research
apparatus, but the machine has al
ready been run for considerable Pc
f.oas, delivering a continuous 5uf-
rent at high vouagcs, and gives
promise that 81 viii shortly be ca
! pable Of furnishing not less than
) 200. 900 volts with considerable am-
4 | perage, and do this for such long
3 7 farlpnu ~ Has "a