Freeland tribune. (Freeland, Pa.) 1888-1921, 1903-03-16

C1' &ly

C1' &lg
No insect is so dreaded in Africa as
the tsetse fly, the bite Of which IS
fatal to horses. The only effectual pro-
lection to the horse is a complete suit
of pajamas, which are largely in use.N>
The cloth of which the pajamas are
made is sting-proof.
DR.. Calvello, an italian, has discov-
cred that nine per cent. of essence OF
thyme and eighteen per cent of es-
sence OF geranium make an excellent
disinfectant, when freely used, for the
hands of medical operators. AS these
essences enter largely into the compost
tion OF eau de Cologne, it follows that
this scent is a good antiseptic for Or
dinary purposes.
In his experiments with various vehi-
cles, NJ. Michelin has found that iron
tires require greater motive power than
either solid rubber or pneumatic. An
electric automobile running with five
per cent. greater speed with pneumatic
tires took eighteen per cent. less power
than when fitted with solid tires; and
in stopping, the solid tires required an =,
Ing power.
For shallow -draught steamers, both
side-whee,s and stern-wheels have dis
advantages, especially in the weight Of
their machinery, while propellers-as
they have been used in fixed tunnels
lose efficiency through increased fric-
tion as loading sinks the tunnels OPEN
ing. In new English propeller boat
for shallow rivers, the stern end of
the tunnel is made adjustable by
hinged flap. Raising or lowering the
flap keeps the opening just below the
surface, and it is claimed that with q
moderate load the gain is twenty-five
per cent.
The search for welding process for
aluminium still goes on, in spite of the,
claim of several investigators that they
have discovered practical solution OF
the problem. One Of the latest claims
is that OF Mary w. Emme. of New
York City, who has discovered that the
result may be attained by heating the
two contracting ends Of aluminium un-
der suitable condition approximately to
or above temperature of 600 degrees
Centigrade. To carry out the process
successfully the parts must be scrupu-
lously cleansed before heating them to
the welding point and it is stated that
the result is mass possessing the
same physical qualities OF piece of
aluminium which has never been sub
jected to separation.
The London School Of Tropical Medi-
which is the cause Of tropical fever
which resembles malaria, but which
does not yield to the same treatment,
and is generally fatal in its resutsR
The new creature does not inhabit the !
corpuscles like the malaria parasite,
but is free in the blood current, like the
filariae, which is the cause of elephan-
tiasis; and it is either identical with or
closely resembles the parasite commun-
municated to certain animals by the
tsetse fly. 1t is described as a tricho-
soma. Its discovery is too recent to
admit OF more than bare mention,
but 1t undoubtedly opens out pros
pect of cure in a class Of cases which
have hitherto proved almost absolutely
intractable, and once more demon
strates the wisdom of establishing
such school of medical research.
The promises of economy gains from
burning pulverized coal have for years
led to persistently recurring eXperi-
ments and each new venture in the
field has been heralded with claims
of final success. After all, howeverN
experience in every instance seems to
have ultimately demonstrated that il
Is difficult to obtain combustion of such
fuel with as small an amount of air
per pound OF fuel as can be obtained
In the best practice with coal fired on
an ordinary CRATE, and this has always
tended to make the economy lower
than with the usual method. Besides
this, the power required to operate the
coal pulverizer and feeder has counted
against the efficiency of the plant as q
whole, and there is generally some diff
ficulty from the collection of ashes and
back connections of the boilers. Judg-
Ing from all the available data, these
drawbacks still remain to be overcome.