The Ketchum keystone. [volume] (Ketchum, Idaho) 1885-1899, 1897-04-17

SCIENCE AND INDUSTRY.

"A report showing the average
wages of women servants in London ID
interesting to American housekeepers.
The general housework girl in London
gets Sc. SO a month, a cook about 50. .
nurse SO and laundress So 25.
DIR. Chapman shows that the bobo-
links which nest west of the Rocky
mountains do not migrate southwark
with the birds of that region, but re-
trace their steps and leave the United
States by way of Florida, thus furnish
ing evidence of the gradual extension
of range westward and of the stability
of the routes of migration.
-Philadelphia's harbor is to be i'm
proved by the city of Philadelphia by
the removal of certain rocks and other
distractions in the Delaware and
Schuylkill rivers. The work will be
done under the direction OF the di-
rector Of public works, and two hun
dred and twenty-five thousand dollars
is available for this purpose.
That plant appreciated by the
cultivator in one country is but a weed
in another, is exemplified by the SEN
sitive plant In our gardens few are
more welcome. In India it is such
pest that it is regarded with as much
disgust as the Canada thistle, horse
nettle, or other notorious plants are by
the American cultivator. 1t is con-
sidered one of the vilest weeds in
India.
AT the Victoria institute. London,
it was stated that all naturalists now
admit that evolution as a working
hypothesis has, as yet, proved INSULT
cient to account for mans place in ma
ture. AS regards the question of the
missing link" between man and the
ape, it has been scientifically demon
strated that in no case had so-called
missing link proved to be other than
human being, with lesser developed
brain than usual.
The capsicum plant, from which
the different varieties of pepper are
produced, is Indigenous to the tropical
regions of Europe, Asia, Africa and
America. 1t grows wild almost as we'll
as under cultivation i1 all these coun-
tries, and in each is used by the ma
tives as seasoning for food. Its ex-
tensive employment has suggested to
medical theorists the thought that it
must be considered as a natural tonic
for the stomach in tropical countries.
bleaching by peroxide of hydrogen
has now become almost universal.
This substance is simply water with
an added atom of oxygen. which extra
oxygen unites with and destroys the
pigments Of vegetable and animal SUBJ
stances without affecting the iibers in
any way or leaving in them any for
eign matter. 1t can be used with any
material. Ivory, bone, human hair,
wool, silk, jute, linen and cotton can
all be bleached, and the wool on the
sheep or the hair on the human head
can be whitened without in the least
affecting its growth or vigor.
Cows milk is almost at the bottom
of the list of the food substances that
contain iron. As it is so important to
infant life. Prof. Bunge has been led to
experiment on animals to see in what
proportion iron is present in the sys-
tenn at different ages. He finds that
the younger animals contain much
more iron than adults; in guinea pig
or rabbit one hour old, for instance.
there is more than four times as much
iron as in the same animals two and a
half months old. He infers from this
that long-continued exclusive milk
diet is not good for babies, but should
be supplemented by wheat prepara-
tions.