The Red Cloud chief., 1877-06-14

TIE WORLD OF sCtKNCk
sDssss.s - 0ssssss 1ssoe~ - ssipsss.
People Who take sulphur In spring
vsashss. sitter The iim~hooosed method
prascrfbed It Doebeboys Hail. may be
intesssesd In the fact tha, the purity Of
thar medicine b open 70 = doubt Mr.
Hanks recently exhibited 70 his fellow
msmben Of the San Francisco Micro
ec0pical Siciety specimens OF the spu-
nous and the genuine flowers Of sui
phur for comparison. The real article
u obtained BY subiimins sulphur. and
except that there IL wIth 1t usually .
little sulphrous acid, the product II a.
most chemically pure. But . great
deal Of Whist b sold - the sublimase
nov turns out. under the microscope. 70
Be merely crude birthstone. ground 70 .
powder. Instead Of flowers" 1t should
b called nour OF sulphur. OF oourse
the spurious article contains many i'm
purities. which make the mess with
treacle slightly nastier.
osoaa - Traavsys.
The English are very thoroughly in
earnest about the use Of steam on tram
wsya BY the bye. the word -,ramwsy."
to desiguate the tracks in the streets
which Americans describe by the round.
about phrase "hOrse-car railroads" Ii
itself IN improvement that might well
b adopted In this country. The bill in
Parliament drawn by q committee.
which IL to authorize the use Of ne
chanical power on tramways," imposes
tho following restrictions: The ma.
chiDery il TO be concealed or protected
from view; the engines are to be q
little - possible given to producing
smoke. vspOr. or noise: the brake power
must stop engine and car within their
own length when going at eight miles
per hour, the speed is limited to eight
miles per hour in the cities and twelve
miles outside Of them; machinery COM
plying with the restrictions may be
licensed for trial purposes for three
months.
Deep boring In Londoo.
Famous a. is the sub Wealden boring
In the annals Of English geology, the
interest In 1t is for a while likely to be
eclipsad by another deep bore carried
on In the heart Of London. The object
Of the new bore is purely commercial,
but the scientific results Of the opera
ton are carefully nOted and preserved
for geOlogists' use. The intention is to
sink . well for the s Of a large brew
cry on TOttenham Court road. At $50
feet the clsys and gravels were passed.
and the upper chalk began; from 400
to s12 feet the work lay through hard
lower chalk and mari: at $40 feet, gault:
at 1904 feet, ~"greensand." which is a
solid stone. The upper greenland has
already been penetrated. and nifty or
sixty feet further will pierce the lower
greensand. The expectation is that the
water supply will then be reached and
there is intense curiosity as to the sue
cess Of the project. The work is done
with q diamond drill. One crown of
diamonds has cut 400 feet; but the strata
have proved of very varied hardness,
and tho flints in the chalk have Occa-
siOnally delayed the speed Of the work.
though not wholly stopping it When
there are no mishaps the progress is
fourteen OF fifteen feet per day. The
value of the diamond crown Of the
boring tool is about $500. Since the
above va written, later advices have
been received, stating that water was
struck below the greenland, and the
dow Is abundant.
Mans Descent from the Lower Animals.
An argument for the hypothesis of
mans derivation from the lower ami.
mails has been found in the structure
Of the eye. DR.. Herman had discov.
cred that the crystalline lens Is so con.
structed as to form distinct images Of
objects that are as much as 90 deg. out
Of the line of the optic axis. That is,
90 far a. the crystalline lens is con.
cerned, We ought to be able to see side
objects plainly whenever they are
within the field Of view. no matter in
what direction We are looking. This
power Is called ~periscopism. Prof.
Joseph LIE Conte, of California, has
pointed out that the human eye is not
wholly p~eriscOpic, while the eyes of
many lower animals-amOng them the
ruminants-pOssess this quality fully.
The cause Of the deficiency in the HUI
man eye, which makes it impossible for
u to see clearly the outline Of anything
1t which we are not looking directly, is
that the retinal images are only distinct
when given by objects directly in the
focal axis. In other words, the human
retina is not p~eriscopic. Therefore, ar
CUES Prof. lie Conte, the periscopism of
the crystalline lens Is almost useless to
man; to other animals it lie extremely
useful, as they have also . periscOpic