The morning news. [volume] (Savannah, Ga.) 1887-1900, 1891-10-04

among trees it should be stayed from side
to side, and perpendicular guys will also be
needed in the whole process. Care and
common sense will be needed from first to
last, and the constructor will have to rely
on his own judgment mainly.
When the line is stretched, have at the
second end disc board exactly like that at
the first and hole of the same size in the
wall. The wire will now have sagged or
bellied downward good deal, and it is
I, rather difficult to make it tight. Turn into
the wall n2ar the hole stout eye-screw,
raise the wire from the ground and screw a
clamp upon it tightly, about feet from the
end. A simple block and tackle is attached
to this clamp, and one end OF the pulley rope
is fastened in the screw-eye; pull the other
end, till the wire is tight enough. Care
must be taken not to put on too much
purchase, else some of the guys may break
| OF the button burst through the drum-head
skin at the other end.
The twisted wire hanging under the button
has now to be Joined to the end of the wire
hanging downward from the clamp. Insert
the short wire with the button or copper
head through the disc box, aud then through
the wall. Take pair of pincers and Join
the ends of the short and long wire by a
telegraphic splice. Now tho line is com
pleted and ready to talk over.
Care must be taken that the wire shall
uOb IOuCl bu6 uOle III Ju6 Will. TO come IN
contact with any solid substance except in
sui ing matter kills the vibration at that
SPOT. When the weather gets cold slight
pieces OF board should be nailed up and
down the two open sides of the dashboard
joining them very closely. Let me give
one word more of caution and That is to be
very careful in guying the line when it
passes among trees or through branches so
that the limbs or boughs may not touch it
during a storm.
Less elaborate and expensive telephones
may be constructed from house to house
as / have said, they will convey conversa-
ton distinctly for 900 or 1000 feet. Take
a cigar box and bore hole in the bottom
at the point where two lines drawn long,
wise, each bisectng the bottom of the box
intersect at right angles. IL you live in q
wooden house bore hole with 21%-inch
brace and bit, aud have the hole in tbe box
| placed opposite the center of the hole In the
! wall Pass the end of the heavy thread or
very slight Irvine intended FOR the connect
! ing line through one hole in button from
the back and downward through another
hole from the face, fastening it with q care
Jul knot. The line is then taken up at the
| other end and connected with q similar con-
! trivanco in the other house with which
communication is desired. The cord must
be pretty strong, otherwise it will break
| by the shrinkage when wet. This is why
| fine wire lines are best
Empty tomato or lobster cans are better
than cigar boxes, or an oblong tin box
serves the purpose for very short distance
exoellently. Any boy can have an instru-
I ment like this and | have known whole
nelghb 9rhoods so connected.
When talking through these telephones
do not speak IN too loud voice, and keep
the mouth about six inches away from the
: box, can, or sounding die.
EDMUND COLLINS.