The Baltimore County union. [volume] (Towsontown, Md.) 1865-1909, 1905-04-15


An Electric Light Want-Automatic Pulse
Taking-A Mystery Still-Periodicity Of
Volcanoes and NEUTRALITY-SUSPICIOUS.
graphs by Dark Light-Wireless Time
Telegraphy-Porosity of Egg Shells
Britain's Deepest Lake.
A more efficient and durable lamp filament is
much desired. carbon being wasteful because
only weak currents can be used with 1t. The
first experiments were with platinum, but more
osmium and ruthenium have been
looked upon as promising. These have failed
through volatility or oxidation at ahigh tempe
nature and in an imperfect vacuum. Iridium
alone does not vaporize or oxidize at white heat.
and the troublesome brittleness Of this metal
has been at last overcome by Guelcher, Of Char
who draws into wire mixture of
the powdered metal and vegetable glue. subse-
quently burning OF the vegetable matter in an
oxyphydrogen flame. The resulting very hard
flament is flexible enough for use in electric
bulbs, while It is claimed to be very durable and
to economic power.
The pulse register of DIR. Gartner, of Vienna,
has proven very successful in lessening the
surgeons work in watching the circulation of
patients under anaesthetics. 1t consists of
forearm, and with hands that are moved over
the dial by sensitive spring, very accurately
showing the pulse and blood-pressure vibra-
tions. 1t even reveals pulse action so feeble
that the finger cannot feel 1t.
AFA
The much-ridiculed name of "liquid crystals"
is still retained by DR.. Otto Lehman, who has
published an enlarged list of the organic COM
49,
substances, as was first made clear fifteen years
ago, have two melting points. and at intermedi-
ate temperatures move freely like liquids, but
polarize light like crystals and show the dichro-
ism of crystals. Whether they are really like
solid crystals is still disputed.
ess
Recent volcanic activity has led H. 1. Jensen,
of New South Wales, to investigate the records
of vesuvius, Etna and other volcanoes for about
a century. From the volcanic eruptions and
magnetic disturbances of 1850 to 1857. Kluge has
inferred connection between these phenomena
and sun-spot minima, and this theory is con-
flrmed. 1t is suggested that at such periods the
earth becomes colder, as it not only receives less
energy from the sun but radiates more heat into
space on account of diminished cloudiness.
Various factors play part in earthquakes, and
oaACoC Ot~AASOo
sary to consider lines of weakness and of fault
ing in the earth's crust with regard to the phase,
sun-spot minima with regard to the period, the
relative position of earth, moon and sun with
regard to the season, and possibly cyclones and
atmospheric pressure with regard to the day.
"a
Tho ultraviolet microscope gives magnified
pictures by invisible light. By using quartz
he oh
length than that passing through the ordinary
lenses. and when the object is illuminated from
cadmium electrodes nothing is seen by the
naked eye. Placing a 1uorescent focusing screen
In the eyepiece, however, brings out the image
in green. Photographic plates are very sensi-
tive to the rays from cadmium electrodes, and
detail.
The wireless time-service of M. Bigourdan in
cludes central clock making an electric con-
tact every second. This actuates an oscillator,
and the signals are transmitted from an elevated
mast to the receiving clocks. A chronograph
band and recording pen make it possible to read
the signals to one-fiftieth of a second.
wonderful lichen of Madagascar, the COM
pass plant, grows only on the east side of certain
frs when at home, but in European botanical
gardens is found to shift its position to the
north side of trees as it becoms acclimated.
~
That eggs. like other foods, may absorb poisons
in spite of their shells has been proven by L.
Camus, French experimenter. On being al
lowed to stand in cold water. the absorption OF
liquid by raw egg was very slight; and on TAX
ing from hot water the boiled egg was found to
have lost weight from the evaporation of in
terror gases. When the cooked egg stood in
water until it cooled, however, there was q very
sensible gain in weight from absorption of
water. The view of housekeepers being thus
confirmed, it is evident that almost any poison
can be introduced into eggs. and the shells do
not even give security against disease germs
that water may contain.
"a
In the survey CT the Scottish lakes. W. dch is
now nearly completed, depth of lOl7 feet has
been reached in Loeb Morar. This proves to be
the deepest lake in the United Kingdom. and,
as the surface is but thirty feet above sealevel,
nearly the entire bed of the lake is below the
surface line of the ocean. Only seven deeper
lakes are known in Europe, four being in Nor
way and three in Italy. At a depth of 1000 feet
throughout the year, at about 420.
~
A curious effect of the war in the Far East is
the migration of sharks to European waters.
The submarine explosions are supposed to have
frightened the creatures, which have passed
through the Suez Canal, and have been making
havoc among the fishes of the Adriatic Inva-
sion of the Black Sea even has been feared.
Tobacco has been discovered by NJ. Dele, a
French psychologist, to have a selective action
upon the auditory nerve He therefore cautions
it altogether where deafness has already begun.
or where there is a family history of such
troubles.
Marriage DEMONSTRATING the month of
March Mr.. William P. Cole, Clerk of the
Circuit Court, issued marriage licenses to the
following persons
WHITE.
Christopher G. Glass to Sophia d. Whalen.
John B. Harris to Augusta Long
Louis J. INLAND to Lima NJ. Hook.
VIM. L. Lejben to Anna M. Beck.
Adam E. Taylor to Nora l.. Simpson.
George Michael to May Hogg.
Spencer B. Prentiss to Barbara Wiedmann.
Harry G. McCubbin to Edna s. King.
John f. Moore to Catherine Karman.
Guy c. Hoffman to E. Audrey McComas.
Frank Peach to Mary A. Nelson
Cecil U. Scriever to Rusella Hill.
William Odensoss to Annie E. Arold
Walter G. Green to Florence B. Hewitt.
j. Alonzo Merritt to Sarah ]. Todd
Andrew Hipson to Augusta Goetz.
Henry A. Bolte to Florence V. Walter.
Herbert E. Francis to Carrie 0. Beall. :
Arthur q. Bickerton to Ellen H. Pinkerton.
George r. Smith to Nora Shue.
John W. Hampshire to Addie Richter.
George W. Miller to Molle E. Rigney.
Harvey Stiffler to Daisy f. Alban.
Ernest Hientsch to Laura NJ. Wagner.
Frank q. Gier to Lillian +. Applegarth.
William Geyshon to Edith A. Henry.
VIM. M. Morris to Mary l.. Measle.
Bernard ]. Mcintyre to Bertha Cook.
Theodore Beagle to Alberta Turnbaugh.
Joseph A. Williams to Helen B. Williams.
Samuel D. Uhler to Ruth c. Griffin.
Peter Bauer to Sophia Aires.