Elk City mining news. (Elk City, Idaho) 1903-1913, 1904-09-10
rtx]NxSCienCe 4
|NsMeInveanftion'
OOO~)OO0~

~~~~~~-~-~~~-~~~-~-~~
The city of Paris has this year
opened a scientific information bureau
at the Sorbonne, and the inquiries al
ready reach as many as twenty in sim
gle days. While special consideration
Is given to scientific matters in Paris
and France, foreign subjects of French
interest receive attention.
The recent excitement in the cotton
market has served to attract atten-
ton to the possibilities of cotton rails
ing in various places where that indus
try has not yet been developed. From
Bogota, for instance, comes the In
formation that in some parts of Colom-
bia cotton can be seen growing wlld
on land that has never been TILED, ana
the newspapers of that country are
trying to create a sentiment in favor
of the cultivation of cotton there.
A remarkable instance of apparent
mimicry in Ceylon has been brought
to notice by DR.. A. Wiley. fish,
commonly known as the sea-bat, strlk-
ingly resembles a decayed leaf, and
recent observer reports pursuing one
of these fishes with a small net, when
the creature suddenly disappeared, and
the pursuer saw only yellow jak leaf
gently and inertly sinking to the bot
tom. AS he turned away, the sup
posed leaf righted itself and darted
off.
The appearance of solidity in photo
graphs-the stereoscopic effects usu-
ally given by two pictures taken from
a slightly different viewpoint Dr.
GradenWitz describes a new single
lens that shows a far-distant image or
a photograph, free from distortion,
and. under the same conditions OF ap-
parent size, distinctness, perspective,
light and shade as those under which
the objects themselves would be seen
with a short Photographic objective.
This conveys to the eye very natural
effect, suggesting unconsciously cor
rect perception of relief and dis
tances.
The steam-heating and electric
lighting combination now being tested
by Dresden promises to open new
r era in municipal economy. A huge
: central station of the Saxon govern
!. ment contains ten generators, produc-
Y ing over $4,000 pounds of steam per
n hour. and this is distributed through
J. street mains to the Royal Opera
9 House, the Picture Gallery, the Twin
Q ger Museum, the Royal Palace anC
s other buildings. After the morning
i heating. little steam is needed to keel
t. up the temperature, so that most o.
the supply can be used for general
It ing electricity, for lighting and othel
e purposes during the latter part of thu
H. day.
E. In Germany, the home of technolog
V. zeal instruction, there are seven spe
)e cial schools devoted to the sole purpos
IL of training locksmiths and black
IL smiths. They are in the cities o
n Burgstadt, Grossenhain, Frankenbert
Nielsen, Glauchau, Rosswein and III
IL tau. Only graduates Of public school
s. are admitted. The course of instru'
IS, ton in three of the schools lasts thre
e. wears; in three of the others 1t
OF shorter. To the school at RosSwei
Ir. are admitted such students only
have completed course in one of I'll
or other six schools, and the curriculum
IN is highly advanced, covering physic
h chemistry and electricity, with pa
elf ticular reference to practical constru
st. ton of machinery. The schools a
ur supported by the blacksmith and loo
lin smith gilds, aided by subventions fro
he the government of Saxony and priva
beneficence.