St. Landry democrat., 1891-05-02
myriad eggs of the female fish tbroupb

little hole in the inside of the egg, ar
"a thus gives life to the germ. When tn
mas but just been ACCOMPLISHED, the egI
%magnifed 100 times in the photograph
shows the young fish in the shape of
) dark spot on one side. This dark spot !
subsequent daily pictures becomes rapid
larger, until it is seen to develop a Ia
and finally to escape from the shell, to
i. gether with thousands of its infant com
:. panions, ready to be planted a few day
later in the waters of the Potomac an,
= other rivers.
One of the most wonderful uses of pho
Biography recently devised is that by which
% a whole edition of a book is turned out au
. tomatically by the camera. A single pag,
= is reproduced at a time, a clock-work de-
- vice being 80 arranged that, by the shift
ing of a continuous strip of paper, the neg
= alive OF the page prints copy after copy
h each blank being exposed for just the nee
u essary time.
In this way a
SIMPLE PENDULUM CONTINUANCE
5 is made to run off perhars a thousand
pages just alike, w,tho 1t the interference
o. hands. A separate negative, of course,
is adjusted for each rage and so the whole
volume is printed peicemeal, sans ink or
bother.
a curious sort of composite photography
has recently been tried with human skulls,
or which 1t was attempted in this way to
OBTAIN representative types for scientific
purposes. For example, a com posite was
made of q numb sr of murderers' skulls in
order to see If there was anything ty oical
in their development. The same thing
was tried with the skulls of sa wages. as
we'll as with those of people of certsin pro-
LESSONS, the idea being to find out whether
the moral nature or mental training of the
man produced and definite cranial modif.
cation. So far as is known, nothing was
ascertained very decisive.
The Light house Board also has employ. |
ed photography lately for the purpose of
hndlng out what sorts of lamps gave the |
greatest amount of light. Pictures were
taken of the flames in order to determine
the question. Copies Of these are to be
sent to light house keepers to show them
what shape of flame naturally depending
upon the cutting of the wick, is most de-
sirable.
For some time past the microscope has
been utilized in very interesting ways for
greatly charging small objects by photo
graphy. The end of the instrument to
which the eye is ordinarily applied is in
troduced into the cameras dark chamber.
while a ray of light is thrown by q small
lamp at the other end through the object
glass, on which the thing to be pictured is
placed, and through the tube of the micro.
scope, thus casting the imsge of the OBJ
ject upon the sensitive plate at the back
of the camera which stands exactly in the
relation of the
purTNA N rr
In this manner small sections of rock. I
cut SO thin as to be transparent, are photo. I
graphed so as to show the material of
which they are made up. By the same a
the finest silks and linens are de
p1cted on a greatly magnlfed scale. 50
that they are made to look like so much 9
coarse mating, their warp and woof being Il
rs plainly discernable as if they were so Il
much straw mating. b
Perhaps the most extraordinary applica. 81
ion of photography that it is possible to
is found in the multiform mechan- :,
cal processes used at the present day for ),
he reproduction of pictures. In the illus. q
of magazines the art of wood cut 9
ing has been almost entirely superseded IL
photo-ens raving In one shape or an 70
ther. Until recently it was thought VI
mposs1ble to reproduce IN This way any
hing but a drawing composed of lines A
Ut now even a painting can be copied tn
f-hand in the shape of q cut by the sim ou
lie device of placing a gauze screen be co
~een the picture and the camera, the GU
etwork of the gauze breaking up the be
Did lights and shadows SO as to make be
lem reproductible. A much better way
accomplishing this, however, has been =.
LtHty lnvQnfa6 hv ouffipn opos. h. p
Re glass negative itself. Thus you find =. =;
the newspapers of to day most beautiful v" '.
drawings of actual works of art, done ~
thin q few hours, which would have ~,
ken the hand workman not long ago -"
onths to turn out. 49, nu ~
Art photography is making rapid strides ~.
lead. The more advanced workers in ha'
IS line are producing results, shown at ~"
q no;ntarS IhSs ye"i' mnl'n vic VIVID the
EN- even form actual photographic com !
'sltlons, by combining in one picture a oe'
ckground with a suitable foreground aic
I'm another negative, figures from still nln
other, acc sssories from yet an.ther, and l n
on. Expert Photographer Smillie, of fan
8 national museum, who knows more my
out this branch of art than any other SLOT
IN in the o. tied States, is getting to. yet
Their an exhibit which vii, inclnda q n.i,
BY every Photographic, process avo
Or devised, with tie apparatus for aoo
king it. ~$% g
the later half of the sixteenth cen. tow
Giovanni Baptiste Porta, a,Neapolitan 70 h
invented the camera obscure, ths,
ich may be said to have been the origin ha q
photography. It was simply q dark Evi
Imbet, through a small hole In which for
rays of sunlight projected upon q like
zen within 8 picture of whatever was in to a
The use originally made of it was bell
copy pictures, which, being thrown live
= !" .Io =. canvas "ltnln q closet Iy in
. over WIN paint ana orusn' the very your
ge. This was almost the FIST applica, -,
of mechanical processes to art. In s
,ocbs' q Franchmsn nnhIisbad an ~ aginl
lary interview with devils, which, III. Jnly
to himself, was u marvellous ne
ohecg. He related how he was caugh, eal' N
n a hurricane and deposited in the do lu1n
of the genii, who initiated him into .'gos
secrets of nature. One of the genii he pea ~
les as saying: you know that rays WILL
ght reflected from bodies form pictures 1t
polished surfaces; for example, on OF sir
reslna Of the sye, on water and on sins
5 The spirits have sought to fix form
. feeting images. They have made a sonnet
lie matter by means of which a picture Evil
'rmed in the twinkling of an eye. tue j,
? coat 9 piece of canvas with this sub. ten al
% and P ace it in front of the object dark
taken. BY means of its viscous ma they
the prepared canvas retains a all so
Thu
FAC-SIMILE OF THE IMAGE Ne = Igreat