The sun., 1890-09-14
REROTRHCkL

again. This time II has the advantage OF be-
ing designed for the use OF electric power. and
many OF the hitherto insuperable difficulties Of
the system are thus avoided. There Ia no
doubt OF its ehoapness and liRhtness compared
with the elevated tracks now In use, aud Ito
handiness and effectiveness on sharp curves
and severe grades are very much Ia It's favor.
A short exhibition elevated track has been
erected In st. Louis. which carries a small
model truck capable OF seatipg two passengers,
One main rail and two guide rails are used
the former being sppportedh D. 6y posts pP. AM up.
grooyed rests on the main rail while smaller
grooved wheels, supported from ,crossLaTs.
car ca to The the track. The car is impSIod bySS
electric motor. so constructed that the weight
UERsss sSSs eG9aHos % tho weight Su
centre making II entirely centrifugal and OBJ
waiting all undue friction.
The English manufacturers have been slow
to avail themselves OF the ADVANTAGES OF the
electric light In their factories. One Arm,
however. which has done so gives no unduall-
ned opinion as to the result. On being applied
TO by leading English electrical journal for
its experience with the electric light compared
with gas. It says; The light is preferable to
The, sll9htost difference Of color ,of, shade Is
could not possibly be done II gas were used
Then again, tho pure state Of the atmosphero
Which 6iSNH is valuable considsrStion. "'''0'
The tests OF the Ferranti mains the progress
OF which is being watched with so much inter.
est by electricians all over the world, are now
being made In London. Over q mile has been
tested at the full pressure In one length. and
current to q small amount, sufficient to &C.
tpally light lamps through Il has been sent
1000. $500. 10000. and 10000 volts The work
,be rssu VIII made pSb
1t has been remarked. as showing what
powerful element OF health the electric light is.
that the general health OF those who use 1t i'm
proves. their appetite and their ability to sleep
increase. and the visits OF the doctor become
less frequent This is especially apparent In
the statistics OF the attendance OF working peo-
pie In factories and other places. In the saw.
ings bank in Queen Victoria street, London,
where 1900 persons are employed, the absences
from illness have been 80 far reduced that tho
extra labor gained is said to have paid for ms
electric light The Influence OF artificial NHht
Searne It has been asserted hat the injury
to the eyes. Of which the growing shortsighted-
ness Of the day is but one result Is duAio the
&c, the electric light is less Injurious than any
o.ner. II the eyes are exposed to the strong
e painful effect. but no one has eyer com.
plaiuad OF the influence OF o steady glow lamp
ne ourS i bS Sb Who
experiencing the least fatigue.
The latest patents Of Prof. Elihu Thomson
cover inventions OF great practical value One
OF them is for the transmission Of power for
long distances by means Of alternating cur
rents. the potential OF current being 80 high as
to materially reduce the cost OF wire. Another
invention 10 kind OF electrical tow horse for
exerting large quantity Of power for mo-
nent in the starting Of cars. When a car 10 far
Se and sapps ks
batteries are placed at different points elonR
the object being an extra supply OF current at
special momente.
The heather Chinee has been carrying out
quite q successful deal in San Francisco The
Pacific Telephone and Telegraph Company no.
ticed that not only was there o considerable
decrease In their orders for telephones from
Chinatown, but that several OF their Oldest
Chinese customers sent in their instruments
as being no longer required. The suspicion
which these facts engendered was found upon
Investigation to be moro than justified. The
willy Mongolians had organized company OF
their own. and decided to pay no moro rent to
the regular company; Second-hand inetru-
run over the housetops. The work had al
been carried out by Chinese. It was so skill
fully done %t that its operation had not been Dc.
been IN operhtion; Fifteen sets Of INSTRUMENTS
office OF the Pacific Telephone Com pany. How
complete the system was may be gathered
principal stores IN Chinatown, lodging houses.
the otiSes h & 81 six c9mpanies' warehouses.
number Of Philadelphia physicians and
surgeons have organized an electro -therapeu-
tlc society for the discussion of questions Of
electricity combined with medicine and sur
gerry. The main object OF the society is to re-
practice OF, eiectro-the rapeutics has hitherto
frequently been associated. and to induce reg
SUBJECT on Scientific bSs to take up the
An English paper says: Usually we look to
America for the biggest things on earth. but.
strange to say. although the Americans are
the most extensive users OF electricity. the
most powerful artificial light In existence Is
the property OF the English Government. and
is to be found in the Isle of Wight. The lamp
referred to Is that of the lighthouse OF St. Cath.
crimes Point. whore there Is also o powerful
fog horn. The plant has three engines Of
S6-horse power each. Two OF these are used
for working the dynamos and tho other for the
fog horn. Tho current Is conducted by wires
across a road direct from the dynamos to the
lamps. there being no accumulators. The light
Is obtained from a carbon lamp Of special pat
tern. The ordinary light Is equal to three mil
lion candles, but light of six million candle
power can be and has been obtained. Il 10
imposslble for any one who has not seen 1t TO
Imagine the wonderful brilliancy Of the
light. but some Idea may be formed
from the fact that II can be distinctly
seen foTty-ave miles away, and that at
the Needles. fourteen miles distant, 1t is quite
easy to read very fine print by means OF
the reflection. On one side oi the lamp room
is quantity Of very thick glass for repairing
the windows broken. not by storms 80 much as
by wild ducks and sea birds which are attract
cd by the light. A singular feature OF the light
house tower Is a plummet and line hanging
from the ceiling of lower chamber. the plum-
met pointing TO q spot on the floor. This is for
the purpose Of enabling the man In charge 70
tell when the tower Is cut OF the perpendlcueE.
Tho lighthouse was built on an under cliff,
formed by gigantic landslip which occurred
In l799. and some portions Of this clin are still
Slipping.