Chicago eagle. [volume] (Chicago, Ill.) 1889-19??, 1893-02-11

Lone DISTANCE PHoToGRAPHy AS
sURED. lit is said that long -distance
photography is rendered quite success
with the new camera with telescopic
objective OF DR.. Adolf Miethe The OBJ
lect consists of convex lens of consider
able length of focus and concave lens
of short focus. These are placed a GER
tain distance apart, depending on the
differences of the two foci BY the laws
of optics this arrangement projects au
inverted image of an object at long dis.
lance from the lenses. The size of the
object is greater the nearer the lenses
are together and the greater the differ
ence between the foci. To obtain good
images, the lenses are of special form and
achromatic. The whole camera looks
very much like Galilean telescope. BY
substituting an ordinary opera glass for
the objective on the camera and drawing
it out fairly good picture will be OBJ
tanned on the ground glass of the camera
Excellent detail photographs of parts of
the City of Potsdam have been taken by
Dr. Miethe's apparatus two miles away
EvoLCrIoN OF THE TELESCOPES. In
1S43 dinner bell of the Phillips Acad
envy at Andover was broken, and George
Bassett the young son of Alvan Clark,
took the fragments, put them into cru
chile with some tin, and proceeded to
melt them in the kitchen fire, telling his
mother he was going to make telescope.
His father became interested, and helped
in shaping and polishing the reflector
The result is said to have been five
inch rejecting telescope of great power.
That was the beginning from which have
grown, in gradual succession the famous
reiIacting telescopes of the Vienna Uni
versity 12-inch aperture), the Morrison
Observatory az 12 inch), the Wisconsin
University % 1-2 inch) the Warren OBJ
servatory &c inch), the Northwestern
University as 1-2 ineh), the Denver
University GO inch), the Princeton Uni
versity (23 inch), the University of Nir-
gina (26 inch), the United States Naval
Observatory at Washington (2G inch,
the Pulkowa Observatory of Russia GO
inch), and the great Lick telescope of
California (36 inch), the largest lens in
the world. i New York Herald.
QUEER HYPNoTIc EXPERIMENTS. -
Some very ecrie stories are being told in
Paris and London papers about recent
hypnotic experiments in the former city,
The most remarkable of these plain "ac-
counts of scientific facts" are about Ger
tain weird experiments by DR.. Luys, at
the Charlie Hospital, on the "e&tcrioriza-
ton" OF the human body. One woman
subjects corporal body vac so com
petely exteriorized that Dr. Luys was
able to transfer her sensibility into a
tumblcr of water. The tumbler was
taken out of sight of the hypnotized sub
Ject, ana reporter present was asked to
touch the water. He placed his finger in
the water, and the woman started as
though in pain. The experiment was
tried successfully on several subjects
The water retained the sen&ibility for q
considerable time, and if drunk before
the sensibility was exhausted the patient
fell into a deadly swoon DIR. Luys, it is
further related, was also able to confirm
the discovery made by Col Roche, adj
miEistrator Of the Ecole Polytechnique,
that it is possible to transfer the sensi-
bility of a hypnotized subject to the
negative of photograph of the patient
ln such cases the subject not only felt
but showed signs of any mark made on
the negative. In Col. Roche's expert
ments the negative was scratched with a
pin, and the subject would vince with
apparent pain, and almost Immediately
mark would show on the hands similar
to those made with the pin on the mega
tive. DIR. Luys is said to have tried this
experiment at the Charlie Hospital with
considerable success.