Spirit of the age. [volume] (Woodstock, Vt.) 1845-1913, 1896-02-15
The New Photography.


The remarkable discovery made
BY Prof. Roentgen of Wuerzburg,
Germany, who has found way Of
photographing through opaque SUBJ
stances, seems to be all that he claims
for it, and the whole scientific world
is Interested. With the ''cathode
rays" Prof. Roentgen discovered that
he could photograph the interior of
living animal, of metal, of a book,
of a leather case and countless other
substances. DR.. Neusser, professor
of medicine in Vienna University.
lately showed by means of photo
graphs taken by Prof. Roentgen's
newly discovered system, the pres
ence and position of calcareous de-
posts in the bladder, liver and kid
neys Of Il subject. The possibilities
of this new discovery in the line of
locating tumors, bullets, ETC., in sur
gerry are far reaching. 1t is also
stated that the new device will de-
tect any imperfections IN the inside
of metal plate.
WHAT THE "CATHODE" RAY IS.
In most OF the books on physics
that have been published within the
past five years you will find de-
scription of the following beautiful
and mysterious phenomenon "Take
glass tube in which an almost per-
feet vacuum has been created. Into
one end insert the negative and into
the other the positive pole of bat
terry. When the current is turned on
there will emanate from the mega
tive pole strange light of green
ish hue, delicate and subtle. These
are cathode rays"
1t is one of the most fascinating
lights that human eye ever beheld,
and many a scientist has sat for hours
in his laboratory gazing upon it.
This light, however, will not pene-
trate glass. The why and wherefore
of this scientists could not explain.
All that was known was that outside
of this glass tube these rays could not
be seen or felt or found; in fact, they
did not exist.
In taking the photographs no cam
era is used. A ''plate holder" Ga
wood frame holding the glass for the
negative), the same as is used in an
ordinary camera, is laid flat upon
table. The article to be photographed
is laid upon the plate holder and the
Crookes tube suspended over the ar
ticle to be photographed. No lens is
used at all and the slide is not removed
from the plate holder. An exposure
of 10 or IS minutes gives a picture
on the negative, the same size as the
article photographed.
A peculiar fact in connection with
the cathode rays is that glass is more
opaque than some metals. Edison
is having tube constructed with a
celulold window with which he eX-
poets to obtain better results than
have yet been obtained.
SUCCESSFUL EXPERIMENTS AT HAM
OVER.
Prof. E. b. Frost and Mr.. Langill
have been experimenting with the
'.Roentgen rays with remarkable
success, says the Hanover Gazette.
Distinct photographs of the bones IN
the human hand have been obtained,
and clear photograph of the frac-
turc in Eddie McCarthy's forearm,
which was broken two weeks ago.
A number of articles We're placed in
small pasteboard box, the paste
board box placed in a large wooden
box and the space between filled with
paper. The contents of the inner
box, which consisted Of knife,
ring, calipers, ETC., were readily de-
tcrmincd from photograph by a
person who had not seen the arti-
cles. Prof. Frost used a Grove bat
terry of seven cells and an induction
coil containing eight mics of wire,
making an exposure of from 10 to 80
minutes.