The Abbeville press and banner. [volume] (Abbeville, S.C.) 1869-1924, 1886-06-02
POPULAR SCIENCE.

! Professor Kaitenbach of Gicssen, has
mentioned TWO instances III which I'M
munity from contagious disease-lm'
parted bv an attack of the disorder has
been transferred from parent to OIL
spring.
DR.. Lander Brurton said recently that
headaches were usually dependent either
upon the presence of decayed teeth or
of some irregularity in the eyes, more
especially in the focal lengths between
the two.
From statistics collected in the abat-
toirs of Munich and Augsburg, Strauss
has found that not more than one calf in
100, 900 is consumptive. The danger OF
conveying consumption with vaccine. OBJ
tanned from these animals is therefore
slight.
According to a German histologist,
there are IN the cerebral mass 800, 600, sOO
nerve cells, each an Independent organ
ism and microscopic brain. OF these
nerve cells he estimates that 5000, ,OOO
die every day, and that every sixty days
Yhe brain is replaced.
DR.. Ernst Fuchs, author of a prize es-
say on blindness and its prevention, states
that short.sightedness, which is increas-
ing so alarmingly among reading people,
is the cause of ten per cent. OF all cases
of blindness of one eye, and that the
immoderate use of tobacco gives rise to
partial blindness. ,.. ..ss
In the New Orleans Medical Journal
DIR. Matas says that as we approach the
srcpics there seems to be we'll dehned
pyrooenic belt within whose limits re-
marSable changes take place in the
blood. ) In tropical countries the COM
plexion of the people is that of conva-
iescing from fever; but healthy existence
in any pyrogenic region would be out OF
the question were our blood constituted
precisely like that of the inhabitants OF
cold countries. ........
After a study of eleven months. DR..
Hugo Winnacker, of Gottingen, has
found that the vegetation of the stones
of street cutters, consists of green alSae
and funcoids. The algae are harmless
and even beneficial, for they grow over
The fungoids and at their expense, and
help to keep them down. Most OF the
fungoids appear to be harmless, but
some of them may be dangerous disease
germs, to be freely distributed by the
wind when dry: and, as it is difficult to
distinguish their qualities. the growth OF
this class of plants should be prevented
as far as possible. The character of the
gutter vegetation may be different in diff
ferent cities. -. ..
; According to Professor Tyndalls In.
vestigations, the singular blue color OF
the water of the. Lake of Geneva IS due
to the presence of small mineral partl-
cles, probably derived from glacier dust,
brought into the lake by drainage from
glacial streams, and of such extreme
minuteness as not to settle even when
the water is allowed to stand for long
time. Examination also makes apparent
the fact that not only is the light mainly
blue from The first moment of its reHec-
ton from the minute particles. but the
less refrangible elements which always
accompany the blue are still further ab.
stracted during the tIansmissions of the
scattered light by true molecular ab-
sorption. These two causes. scattering
and absorption, are therefore con-
sidered sufficient to account satisfactory
ly for the exceptional blueness of both
the Lake of Geneva and the Mediterra-
mean sea. go .-..-.- ----~-