The sun., 1890-07-07

ordinary influence machine is proof OF tho sautary
| and refreshing influence produced. A physician in
Philadelphia has taken very wise step in tho ntroduc
ton OF small electric machine for tho production OF
ozone. 1t is in a compact form. operated by small
battery an can bo conveniently carried There is said
90 he large demand for tho machine for purifying the
sick rooms OF private patients
Tho great Importance OF teesra2hy can be clearly
seen from statistics lately published II is shown that
there are aOOoOoo miles Of land lines existing valued
h2lo,Uo OOL Tho cables belonging to Governments
are lSl7S miles long ami nre valued at SlOotO,OOO.
The cable companies have lOToOl miles OF cable
Ing slsoo ooo and have total capital OF s2ooD0oon
| Tho gross expenditure land lines and cables has
beon over S5c0OOOOOl All this has been created dur.
Ing the last nifty years, and most OF the submarine
| chbIo portion during the last twenty i've years
Ono of tho most popular inventions OF rocont years
10 that or Boston man who has patented lever
ranRcment by means OF which tho keyboard OF plano
may DO disconnected from the strings whom the In.
| strument will become mute although tho original
touch 10 maintained There has been great anxiety to
know whether tho control ot tho lever will bo confined
to the person seated at tho piano extended one
all OF tho audience notorious that for many years
conversation NJ fashionable gatherings has been inter
fered with by the playing of the pano, and grateful
reiet from this indction seems TO be at last hand.
Those who admire digial facility still be graned
for there is nothing to prevent tho performer from
meandcrng placidly she koys rushing over the
keyboard ike mighty mountain torrent; tho ex
ecution Ia there Just tho though the sonnd Is not
The large class who out into society talk
talk without pause aud without stint and those few
lovers of music who like it for its sake will 10
abundantly consoed by tho fact that tho greatest good
for the greatest number has been attained The worst
point about tho device Ia that there electrical
connection which sounds boil whenever any faults of
touch or tme are committed 1t seems somewhat un.
fair that the public should have suffer for the of
tho performer
case OF considerable interest to electrical engineers
now pending In England Three OF the engineers
local electric lighting company wero summoned by
barrister for damage to trees by wires At an early
period difficulty had existed with the trees and several
poles had been shifted in consequence of tho owners
giving notice that they would not allow the be
legged to be dono to trees dedicated tho public
avenue outside the complainants grounds and over
which he claimed rights Tho question is being argued
on points OF law. It beug regarded test and
important interests being involved 1t ia maintained
that the freehold extends to tho middle of the road
although the sovereign and have rights to pass
novel use for the electric motor is reported from
Altoona, where a motDr.workod fan is employed in Q
vault whore books kept in order to preserve them
from tho effect of damp.
Tho prices paid for certain inventions are such
as TO give ENCOURAGEMENT to those plucky and un
daunted inventors who stil struggling mature
and formulate their ideas Major Watkin received for
his finder si75 oOo aud s1uoooo paid for
the Brennan torpedo.