The Baltimore County union. [volume] (Towsontown, Md.) 1865-1909, 1903-04-18

Tin-Saving-Typhoid Antitoxin- Early
Ballooning- Glacier Sounding.
The artificial producing of pearls in large
quantities is a simple problem, in the view OF
DR.. Fl. Lyster Jameson. One cause Of pearl for
nation proves to be worm, which has its origin
in the cookie or "tapestry-shell." from which
the larvae pass to the mussel, and may be eaten
with the latter by the elder or scooter, reaching
maturity in the intestines Of these birds. IT
the larvae remain in the mussel long enough.
pearls are formed. With full knowledge OF the
life-histories of these parasites. 1t Is believed
that pearl-oysters or pearl-mussels may be in
fected to any desired extent by placing them in
infected company. and the infected molluscs
can then be left to themselves in suitable beds
until the pearls are sufficiently developed.
81
Two parasitic worms, bilharzie and ankylosto-
mum, work terrible havoc among natives of
Egypt. How these parasites reach the intes-
tines has been a matter of much speculation,
but Prof. Looss, accidentally injecting himself
with anklostomiasis by allowing drop Of water
to rest on his hand, has been able to prove that
the larva of one species at least enters the
body through the skin. AS the same is doubt
less true of bilharzia, simple wading in the in
fected Nile explains the prevalence of two
dread diseases.
s~s
test of the friction of ball-bearIngs of differ
emit sizes at different speeds has shown that at
high speeds such bearings fail completely. For
ordinary pressures and speeds their value seems
to have been over-estimated, as they give but
little less loss by friction than well polished and
thoroughly oiled bearings of ordinary kind.
-
A. a. d.
timated is supplied by vapor from the Pacific
and Indian Oceans.
Arteriosclerosis, hardening Of the arteries
through the deposit of phosphate of lime, is a
common, If not universal, i'll of persons who
have passed middle life. In extreme cases the
smaller blood vessels become closed, resulting
in local liberation and death, and in other cases
the sluggish flow of blood causes anemia and
attendant evils, while the extra work put upon
the heart leads to the enlargemento of that organ.
DR.. Trunecek, European physician, has been
led to conclude that the lime deposit is due to
diminishing salt in the arteries. The phosphate
of lime is insoluble in distilled water but is
readily dissolved in a solution of chloride of
sodium, and DR.. Trunecek proposes to treat the
stiffness and other troubles of old age by injec-
tions of an inorganic serum consisting of the
common salt and other mineral constituents of
blood-serum dissolved in distilled water in ten
times their normal proportion. Trial of this
serum is reported by P. Goggia, a French writer,
to have shown favorable action on all symptoms,
though without softening hardened arteries.
-
The collapse of bog from overgrowth is a
rather surprising and very dramatic phenome-
non. The thirty or forty feet of depth of q
large peat-bog, states r. Lloyd Praeger, is made
up of fairly firm surface deposit of inter-
twined plants and quite dense bottom layer of
decomposed matter, with layer Of thin mud
between the two, A heavy rainfall or obstruct-
ed drainage may dilute the mud and swell the
bog to the bursting point. Near Killarney, on
December 2S, 1885, large bog. 750 feet above
sea-level, became ruptured along turf-cutting,
and poured down the valley to Lake Killarney,
IA miles away, killing eight persons and destroy
ing much arabic land. The flow continued in
termittently for five days.
-.
Increasing attention is being given to drugs
that injure the sight, A recent German case is
reported in which large doses of naphthalin and
castor oil for enteritis were followed by pain in
the abdomen and rapid failure of vision. The
patient became barely able to count ones fin
gers five feet away. Small white spots were
seen on the crystalline lens, and remained after
the restoration of general health.
-
A new process for recovering the great guam
titles of tin lost in tinned-iro waste has been
patented in Sweden. The material is placed in
vessel of iron or other stronger electro-posi-
tive metal than TIM and this receptacle is filled
with caustic alkali, depolarizer-such as cop
do 1otvn oil 7n1 A.
current is set up. the tin at the same time sepa-
rating alkali stannate. When the alkai has
Ing the into separate as stannfc nyafas.ent. ms
is treated with acid, and metallic tin is finally
obtained from the resulting solution by electro
lysis.
Little or no toxin being produced in artificial
CIVILIZATIONS of the typhoid bacillus, all attempts
hitherto to obtain typhoid antitoxin have been
failures. BY growing the typhoid bacillus in
special culture medium from spleen and bone
marrow, Chamtemesse now claims to have OBJ
tanned toxin with'which he has been able to
immunize horses and to prepare typhoid anti
toxin. With the latter 179 cases were treated,
the mortality Eeing but 81 per cent, while in
1892 cases treated in the usual way at the same
time the mortality was 1913 per cent.
"a
Balloons were used millions of years before
man invented them, says DR.. Dallinger. Late
studies have shown that the long glistening
threads of gossamer seen in fields on early au-
tumn days are due to spiderlings, whose first
silk is woven into balloon baskets in which they
float away. They cut or extend the threads
trailing from these balloons as the pressure of
the atmosphere may dictate.
"a
A hole through glacier has been bored at
last by Profs. Blumcke and Hess, Bavarian stu
dents of these ice rivers. With a hand-boring
machine and special arrangement for washing
out ice fragments, the Hintereis glacier in the
Otzhal Alps was found to have thickness of
5O2 feet.