The Penn's Grove record., 1883-10-13
Science.

F8&
were in use ON $50 differents roads las
year, but three failures are reported.
M. Victor Saint Paul, a French
man, has offered a prize of $1,000 to an.
person who shall discover an infallibl
curt for d~iphtheria.
The greatest heat of the air in th,
sun probably never exceeds 145o Fab.
nor the greatest cold Go below zero
About 1909 above and 400 below zert
are the extremes for the United States
and very unusual.
Mr.. Flinders Petrie is about to pub.
lish a work on measurements of the
great pyramid, in which he will show
that the new measurements are irrecon.
citable with those on which Professor
Piazzi Smyth has built his hypothesis.
Mr.. Ernest Giles, the explorer, con-
templates organizing a grand final ex
petition to traverse the remaining I'M
explored portions of the Australian con-
%tinent, and to endeavor to discover
some more trustworthy traces of Leic-
hardt.
The London Sanitary Assurance
Association is going to recommend leg
islation which will compel builders of
new buildings to obtain a certificate
from some authority as to their sanitary
condition before such buildings can be
inhabited.
The Engineering Revie,o says that
the frequent use of the Indicator for de-
termining the amount of pc wer con-
sumed in driving shafting is of great
value. From not less than 80 to so per
cent. of the power of engines is ordinar-
lily used for this purpose.
The President of the French Me-
genealogical Bureau, NJ. Mangon reports
that SO per cent. of the weather forecasts
made by the Bureau have proved good.
OF 207 tempest warnings sent to sea-
ports, 100 have been fulfilled entirely,
65 par ly and AZ not at all.
The purest lard oil is said to be
that which is manufactured by submit
ting solid leaf lard to great pressure
during the cold-st period of winter.
Oil of this quality is used for burning
in small mechanical lamps. 1t gives a
bright flame and does not incrust the
wick.
1t has been observed that ''right-
h~andedness" extends far down in the
scale of creation. Parrots take hold of
their food in their right foot by prefer
ence, and Mr.. Crookes is inclined to be-
lieve that insects like wasps, beetles and
spiders use the right anterior foot most
frequently.
A new lightning appliance has
been invented by NJ. de Khodinsky He
directs a jet of coal gas ahd of oxygen
on a specially prepared prismatic pencil
of magnesia. The coal gas and the
oxygen arrive at the point of combus-
ton by two separate pipes inclosed in
the same tube.
1t is maintained by some scientists
that the aroma of fruist increase with
the latitude, while the sweetness de-
creases. Many herbs, such as csraway,
are richer in essential oils in Norway
than in more southern regions. This
effect is ascribed to the influence of the
prolonged light of the summer months.
Although three OF four crystals of
the genuine precious topaz remarkable
for size and elearness have been found
near Pixies Peak, Mr.. r. I. Cross as
serts that the stone which is cut in
Colorado and sold as topaz to tourists is
not topaz at all, but simply smoky
quartz, or the cairingorm stone of Scot
land.
Leaves of turnips and the like are
frequently used as green fodder, but
their removal has had a bad effect upon
the plants. Actual trial with the sugar
beet has shown that the d%enudation
process has reduced the quantity of
sugar 81 per cent. The leaves are also
less nourishing than young grass.
ALLOYS are often difficult to make.
II has been found that the presence of
even 10000 of a pound of anthony in
a pound of melted lead increases the
rapidity with which the lead oxidizes
and burns. Lead which contains more
than 1-1400 of its weight of copper is
unfit for the manufacture of white lead.
TO increase the quantity of nitro
gen which is given off as ammonia dur
ing the destructive distillation of shales
for the manufacture of oils, DR.. Urqu-
hart mixes with the shale before intro
ducing it into the retorts an alkali or
alkline earth and thus facilitates the
combination of the hydrogen with the
nitrogen.
The composition of elephants milk,
according to the analysis of DIR. Quesne-
vile, in the Monitear Scientifque, is
similar to that of cream, but its consist
ency is different. Its odor and taste
are very agreeable, and the taste is SUI
perior to that of most other kinds of
milk. 1t is about equal to cows milk
In quality.
Professor jaeger the ''soul-smeller,"
as he is familiarly called in Germany,
lately delivered a lecture in which he
insisted upon the expediency of wearing
animal fbres, and only them, next the
skin. He would not have cotton OF
linen even for the lining of clothes.
Professor jaeger can amuse if he does
not instruct.