The Baltimore County union. [volume] (Towsontown, Md.) 1865-1909, 1904-08-13

lNUtEL OkAWlhGr-A AdfkOtED A<AFE ChtlNS
CHANGE IN CANNED MEATs-How
WE GROW OLD-THE CURE BY VIOLET
RAYs-A MIGHTY STAR-FREEzINc Our
OxYCEN--CATcHIEc RAPID M0TIoNs-
ANOTHER SAFE EXPLOSIVE.
The perspectartigraph is an ingeni-
Gus instrument with which Otto Eichen-
berger, of Geneva, makes it easy for the
amateur artist to give accurate perspec-
tive to landscapes or drawings of any
objects A folding box opens to form a
table, and near the top of its extensible
sides a telescope is so mounted that as
it is moved about in following the details
of any view a pencil is made to draw
a corresponding line on a sheet of paper
beneath. Crossed hairs in the telescope
give precision, while the pencil is kept
upon the paper by sliding up and down
in a suitable holder. Beautiful drawings
are made with little or no practice and
specimen work exhibited includes pam
Drama Of the Alps and view of Geneva.
A new method of producing artificial
respiration is claimed by Prof. Schafer,
of Edinburgh, to be much more effective
in cases Of drowning and asphyxiation
than any other. Placing the subject in
prone position, the operator applies pres
sure with his hands to the lower ribs and
repeats this about IS times a minute by
swinging himself backward and forward.
The common moving the subjects arms
is condemned as of little value.
The liquefaction of gelatin in old can
ned meats has been found by DR.. Grixoni
to be due to bacteria. As animals were
poisoned both by injection and feeding,
he concludes that canned meats that
splash on being shaken are dangerous
unless boiled before use.
A mysterious midsummer hum" APP
parently high in air, has been recorded
bv an English observer. 1t is like the
sound of bees, is heard in June and July,
and when a stone is thrown into the air
large unknown insects are seen to follow
it toward the ground.
Old age is found by Prof. MetchnikoH,
of the Pasteur Institute, to be accompa-
MED by the atrophy of the higher and spe-
cifc cells of tissue and their replacement
by hypertrophied connective tissue. Ger
tain of the simpler tissues, such as the
outer skin and the mucous membrane do
not grow old, but the more specialized
cells like those of the brain, liver and
kidneys, are actually destroyed and re-
placed, at first by wandering cells and
later by connective tissue, both of which
are less specialized forms of living mat
ter, incapable of performing the func-
tons of important organs In this vain
battle of the higher tissues against the
more enduring lower ones,-which con-
stitu1es the process of growing old,-Prof.
Metchnikoff believes we should be able
to take voluntary part That is, it
may soon prove possible to inject a serum
to strengthen the higher functions and
thus make old age condition of health
instead of disease.
The Finsen light is a specially con-
structed arc lamp of 10000 candle power,
or twenty times stronger than an ordinary
street lamp, and it produces an unusually
large percentage of violet rays. The
concentrated rays are carried from the
arc to the patient through tubes, all but
the violet being screened out by lenses.
The light is practically a specific for
lupus and other skin diseases and six
years of experience in his Copenhagen
institute = where 800 persons are now
treated daily-leads Prof. Finsen to de-
clare that 81 per cent of even the worst
cases of lupus can be cured. In nearly
800 cases cured the disease mad continued
for an average of eleven years.
The stars are now known to vary
greatly in size and brilliancy, as well
as in distance from us, many being prob
ably much smaller than our sun. Mr..
]. E. Gore calculates that Aldebaren has
a mass SS2 times greater than our sun;
and that the red southern star Antares
is us times brighter than Aldebaren,
with mass about $4,000 times the
eassf H.