New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1896-02-09
WITHOUT CROOKEs TUBES.
SUCCESSFUL. EXPERIMENTS OF DIR. WILLIAM J.
MORTON-ORDINARY ELECTRICAL En-
CITERS USED.


William j. Morton. the welknown neorologist. Of
this city, whose reputation in his profession has
been increased by his electrical researches and ex
periments has been assduousy devotng himself
for some time TO the study and possible develop
msnt of "cathodog raphy." the obtaining OF pict-
ures by means of the Invisible radiance coming
10 be called. DR.. Morton has achieved many
ceent and satisfactory results and like Professor
Pupin OF Columbia College. he has proved that
photographs of the Invisible be made without
the aid of the rluch-vaunted Crookes tubes. Many
OF DR.. Morton's experiments have been made win
an ordinary everyday ncdndescent bu.b and varl-
Gus metallic objects which have been subjected 10
the "X'' rays obtained therefrom have been clearly
and distinctly impressed upon sensitive films and
plates.
In most OF his operations DR.. Morton has not ex-
actly followed out the system Of Professor R0ntgen
but has worked upon the idea that similar and
equally satisfactory results might be obtained by
the ordinary and familiar electric radiations from
influence machines and induction coils He set HIM
self to grapple with the question whether such rada
tons invisible partly visible might produce the
effect thus far alleged be peculiar the "X rays
OF Tn. Crookes tube The result Of Of his
experiments would to demonstrate that there
is abundant foundation for answering this question
in the affirmative He has succeeded in proving that
objects inclosed and invisible when interposed in
the pathway Of ordinary electric radatons. may he
photographed upon relatively distant sensitive plates
by reason Of variations in the strength or quality OF
me radiation produced by the interposed objects
brief summary Of the methods employed by Or.
Marion In n few experiments Is OF interest at the
cresant time when many efforts are being made by
scientists to modify or develop R0ntgen's theories.
Tn one of his experiments DR.. Morton placed
si,ive film inside OF an ordinary film holder or box
commonly used TO protect II from light before ex-
posure in the camera This box consists OF wood
and blackened cardboard slides Upon the outside
of the box were laid the letters p. cut out Of
very thin sheet OF pure copper. Upon the letters
was laid another sheet OF cardboard Of the same
size as the box. namely. 4x5 inches. the whole
curely camped by strong rubber bands. An in1u-
ence machine then set in action. with the fol-
lowing adjustment: To avoid sparks. no Leyden
lars used The negative discharging- rod was
the ordinary brass ball. one inch In diameter the
positive sharp point. the two separated about six
venng field In such a manner that It lay against the
negative ball The characteristic "fox-tail'' or
brush discharge from the positive point extended
nearly the box spark appeared AT the negative
this field the film was developed, and black images
OF the letters were produced upon the Aim.
Equally satisfactory results were obtained in an
oyer operation, wherein the film-hoder was ar
thSAother copper letters from the sheet were
substituted and covered with additional layers Of
cardboard. The box and wood thus prepared were
held for five minutes between the poles OF the
whose primary current was an oscillating Leyden
Jar and spark gap current The distance apart of
the two sharp-pointed terminals about three
Inches, and only slight visible brush discharge APP
peared at these terminals
In yet another experiment. by means OF which DR..
Morton obtained 'cathodosraph." as he termed 1t.