The Pulaski citizen. [volume] (Pulaski, Tenn.) 1866-current, 1875-07-22
NUMBER %.
tell you; if you knew VIII he was, You
would be greatly disappointed at the
curiosity which he has excited ."
SCRAPS OF NCIENCR
ANEsTHEr1z1Se DURING SLEEP.

| ANEsTHErIzTNG DURING SLEEP
Prof. Dolbeau describes at mueb
longth, in the AnnaIes d Hyginene. his
various experiments to ascertain wheth.
er person can be anasthetized during
sleep. he mentions the cases of three
patients, who. while sleeping, were
readily aroused by applying small guam
Titles of chlorOform at no great distance
from the nostrils. In another series of
experiments, made on seven patients.
ten drops OF chloroform were poured on
a napkin folded in four, which was
gradually brought to the vicinity of the
air passage so that ali air inspired ira
versed it; in ali these cases, the pa
tlents we're suddenly aroused from their
sleep. some Immediately, and only one
after the eleventh inspiration. A third
group OF cases consisted of % patients.
II was found IN ten ont Of this number
that Is IN more than a third, complefe
anasthesia could be Induced without
awakening them. Dexterity in the
made If procedure seemed to have
something to do with the proportion
thus obtained, for this increased 1ro-
gressiveiy with the number of cases ex-
perimentsd upon.
BRAIN OF MAN AND APES.
Prof. Owen Is quoted as saving. be.
fore the Authropological society Of
London, that the brain of man is more
complex In its organization than the
brain of inferior animals, it is more
subject to injury, and more liable to
experience the want of perfect develop
ment; that instances of idiocy occur
among all races of mankind. and that
extreme smsllness of the skull indicates
want of intellect approaching to idiocy.
Alludlng to the attempts that have
been made TO find link of connection
between man and apes, he remarked
that it was possible that an idiot with
an imperfectly developed brain might
wander into some cave, and there die,
and in two or three years his bones
might be covered with mud, or be i'm
bedded in stalagmite, and. when dis
covered, such a skull might be adduoed
as affording the long looked for link con-
Meeting man with the inferior animals.
He expresses the opinion that the diff
ference IN question is altogether too
wide to be bridRed over by this skull of
any creature yet discovered.
PHOTOGRAPHS BY LIGHTING.
The leaf-hke figures which are so fire.
quently fonnd upon the bodies of men
and animals struck by lightning are
generally believed to be impressions
of the foliage in the vicinity where the
accident occurs, made by the lightning
in some manner ANALOGOUS to the pro-
cess of photograph. There are strong
however, in support of the
advanced by Mr.. Tomlinson,
+. r. s., that these figures are not de-
rived from trees at all, but represent the
fiery hand of lightning itself, the trunk
being traced by the main discharge,
while the spray-like branches proceed
from the electric feelers first cast out,
as it were, to find the line of least re-
sistauce. The sensation of cob-Webs
being drawn over the face. which has
sometimes been felt by sailors Just be-
fore their ship was struck by lightning,
is by him attributed to these sprays Of
preceding the main discharge.
It is nevertheless true that neighboring
metallic objects, such as horseshoe, for
example. are frequently impressed with
marvellous distinctness upon the body
of the person struck.
PREVEHTIOE OF INCRUsTATION OF BOILERS.
Experiments have been made on one
of the Australian railways in lining To-
comotive boilers with copper, TO prevent
The plates at each end
were lined with copper of the thickness
of one millimetre, the result being that
while the centra plate (iron) had layer
OF lncrustation ten millimetres thick in
two years, and carious corrosion besides, |
the copper plates had quite a smooth |
surface, and only three miliimetres' |
thickness of incrustation.