Staunton spectator. [volume] (Staunton, Va.) 1849-1896, 1886-03-03

late meeting of the Vienna Geographical
Society. 1t is at least twenty-five miles
long. and from Mohammedan evidence APP
pears to have dried up after previous exls-
tence, and to have again filled up at quite
recent date.
How CHILDREN GRow.-A remarkable
physiological discovery has been MADE Dy
Rev. Mailing Hansen, principal OF tne
Danish Institution for the Deaf and DuHo'
During a period of three years he has mace
freouent careful measurements and weigh
ings of the 100 childen under his charge,
and has reached the conclusion that the
BODY does not increase evenly in bulk ana
height throughout the year. but that dur
ing some months the child accumulates
bulk and remains stationary in height, while
at another time there is growth in stature
with comparatively little increase in weight
These results are confirmed by similar eX-
periments in several smaller institutions IN
Denmark.
LIGHTING POWER OF COAL Franklin
| Institute tests indicate that one pound OF
coal burned under a gooi boiler yields a
Igh, of about 20 Ca dies by the incandescent
electric system. The same weight OF Goa, Goa,
gives IRON the naked arc-light about 100
candles, only so candles being ordinarily
available on account of the shading OF arc
hghts. The gas from one pound of bitumi
nous coal Yields from IA to II candles The
greater economy of fuel in electric lighting
| is offset by the increased expense for ma
chinery and attention.
A dictionary giving scientific and tech
meal terms in all languages is projected by
Prof. Vilanova, and is endorsed by the In
| ter ational Geological Congress.
Two French Investigators have found tina,
the germs OF fermentation are not destroyed
or perceptibly affected by a pressure of 300
TO 400 atmospheIes continued for sevela
days
Recent German researches show that the
publication of atul al waters is effected al
n ost wholly By plan and animal agencies;
the chemical action of ozone, peroxiue Of
Hydrogen and atmospheric oxygen exertlne
but feeble influence.
TILLABLE LAKES Prof. Schwalbe hal
drawn the attention of the Berlin Physica
Society to two interesting phenomena OBJ
served in the gypsum of tue Southern Hartz
viz, the sinking of rivers, often accom-
panied by loud uproar, and the occurrence
of intermittent lakes. The so-caled ''peas
ants ditch" near Rosslau, was, i'll the las
century, as the old contracts between TIM
two neignboring villages prove, sometime
a lake serving one village for fishing pur
poses, and sometimes dry land. which wa
then titled by the other village. Severa
channels at the bottom of the lake lead t.
the interior of the gypsum rock, yet thu
water when it gathered here, stood for sew
eral years at depth of thirty to fifty feet
when it suddenly disappeared again. Il
the years 1876, 1877 and 1878, this lake wa
filed with water, and since the last date ha
been dry land.
METALS IN PLANTs.-Late investigation
indicatcthat the chlorophyll, or green color
ing substance of the leaves, is most liable
pick up metallic matter absorbed by tn
roots of plants When vines have bee
mauured with sulphate of copper, most
the metal is deposited in the leaves, merel
doubtful trace appearing in the juice
the grapes. Tca-leav contain much iron
= doubtless due to the ochreous soil on whic
Icy best grow.
paper on harbors, Prof. L. M. HauT
ons that from New York to the Gu
Co there are only four natural Ell
where the depth at mean low waite
nteen feet, while the largest ship
a twenty six to twenty eight an
Get.
lars that there are now inhabite
|ings in Saxony. They are du
zone hill, have different room.
k, as well as chimneys, win
brs and are said TO be very dl
~ ENGINEERING FEAT.-In the constru
zion of tunnel at Stockholm cold air hs
zen applied in novel manneT. In pas