The record-union., 1899-07-09


An old friend of the late Rosa Bon
heur writes the following interesting
details of the last four years OF her
life: AT no period Of her existence
was Mdlle. Bonheur what is known as
a society woman She did not even
care to go into the artistic and literary
circles of Paris, but her chosen
friends, nearly all of them men ana
women who had made their mark IN
the world, were always warmly well
coined by her. She rarely, however,
entered their houses, and it is good
many years since she went to dinner
party. I was in her studio when, IN
the late COS, the Empress Eugene
visited her, and pinned the cross OF
the Legion of Honor on her breast
and embracing her on both cneeKs'
said: Now, 1 am your godmother She
begged her to come to court, but Mdlle
Bonheur assured her she could not
serve two masters, art and the world,
and so far as l know she never re-
turned the imperial visit. One after
the other she lost her two brothers,
Isador Bonheur, the sculptor, and Au-
guste the painter. But I think she
missed most her sister, Juliette Bon
heur, who was so successful as a
painter of small animals and birds.
One after another her old friends
passed away, and not many weeks ago.
although apparently in the best of
II chi, IA n
had fearful fits of depression which
absolutely overwhelmed her. She tried
her best to throw them off and to throw
herself into work which was too hard
and lengthy for her strength and age.
Still she was always bright and cheer
full, but always with a sad, far-away
expression in her beautiful face, which
was most pathetic. Her hair, too, had
grown quite white, and not long ago
there was scarcely white hair in that
wonderful name of tawny brown short
locks. She was in very sense brave,
good woman, and those who knew her
we'll, as 1 did, will mourn her till the
end of their lives
New York Tribune: Few undertake
ings have had the popular, scientific
and commercial interest. that attaches
to the endeavor to make a photograph
which will faithfully reproduce the hues
of the object or scene depicted. Almost
countless attempts have been recorded
within the last few years, and now a
new one-which has been attended with
a notable degree of SUGGESTS reported
by Professor r. w. Wood, who occu-
pies the chair of physics in the Uni
versity of Wisconsin. His work is the
more important because it has been
conducted along new lines. The frs:
approach to a real photograph in col
ors was effected by Lippmann in Paris.
The Lumiere brothers have improved
on the original result slightly, but the
process employed by them is the same
They put behind the sensitive plate a
mirror, and the interference between
the rays reflected from the rear and
those coming in from the front pro-
duces the effect obtained. The colors
are seen only by holding the plate in
a certain position with reference to the
light, and it is impossible to multiply
the picture from the original. The Tins
required for the exposure is several
seconds. These are serious drawbacks
and preclude anything like a general
use of the Lippmann system. A second
plan, tried by a large number of men
with trif1ing differences of detail, takes
three separate negatives, each one
through a transparent colored screen
that is placed inside the camera. One
screen is red, another blue or violet
and the third is green. The pictures
may be taken simultaneously or ir
succession, but are preferably obtained
together From each of the three neg
atives a positive is printed off by the
usual means 1t has the ordinary black
hue of developed plate. But If an
other set of color screens is used over
these positives. and suitable arrange
ments are made for letting the lighi
shine through them, a composite may
be derived from the three that offer.
to the eye fairly good repetition o1
the tints, as we'll as the forms. of the
subject portrayed. Albert Bierstadt o.
New York, Ives of Philadelphia, Sells
of Germany, and many others have
used this three-screen process A sim
plified form of it was tried by Jolly oil
Ireland and McDonough of Chicago
instead of having separate screens
Lines only -hundredths of ar
inch wide, of the three colors in reg
ular succession and close to each other
were ruled upon a glass plate, and thi.
served as the screen through which
the pictures were taken. When a posi-
tive had been obtained from the mega
tive the former was viewed through /;
duplicate of the lined screen just de
scribed.
To understand the system of Profes.
sor Wood one should refresh his mem.
ory in regard to diffraction phenomena
When a beam of white light is broker
up by a prism into a rainbow. or spec.
trum, the result is accomplished b,
refraction. The rays of different col.
ors' are not only bent out of their origi
nal path, but are diverted unequally
The inequality separates one hue from
another Diffraction is a somewha
similar handipp and breaking nm of 6