El Paso herald. (El Paso, Tex.) 1901-1931, 1912-03-06
BY FREDERIC J. HASKIN

how good the reflection. there must
be considerable loss of efficiency as
compared with direct lighting so that
more current must be consumed IN
reOrganizing the lighting system of a
building, this difficulty may be over
come by substituting light walls Tor
dark ones. Another characteristic
of indirect lighting is the cOmplet5
absence Of shadows. certain amount
OF shadow is needed IN most places,
since il produces the difference in in
tensity by which the eye distinguishes
objects and accurately measures their
dimensions and position The lack OF
shadow in a large room lighted Dy
indirect illumination, is sometimes of
set by an occasional local direct light
Semi indirect illumination consists
in having part of the light thrown Dy
glass bowl or dish TO the ceiling
and walls and thence reflected
throughout the room, while the rest OF
the light is diffused by direct trans
mission through the glass rms IS
the best compromise between direct
and indirect lighting since II gives
sufficient amount OF SHADOW ana
wastes less light through absorption
than the indirect method II may pc
called the happy medium between the
direct and indirect method combining
economy with an agreeable effect
Direct Illumination Cheapest.
Direct illumination is the system in
which the lamps are in sight and the
light distributed directly from them
1t is the most common method be-
cause il is the cheapest Local ilIu-
miuatiOn which concentrates the ugnE
on a broad object such as a reading
table, desk or machine, without re1-
erence to the general illumination OF
the room. is a parucularized form OF
direct illumination The efficiency OF
direct Illumination is largely a mat
ter Of Of fixtures. globes and shades
especially the latter because the
brightest light can be almost SmOun-
cred into nothing by the wrong shade
Of it car be so intensified that the
eye cannot stand IT.
Glass does three things TO light;
transmits absOrbs or reflects. Alb
sorpuon is waste and vet there must
Always be more or less OF 1t. Reflec-
ton sends the light where it is wanted
ana transmission lets the light
through 10 give the illumination de-
sired There are several kinds OF
glass now used in making shades or
globes Clear glass sends the light
through without change Of direction
or quality and is used on many are
lamps 1t does not hide the brilliancy
and IS injurious 10 the eyes Frosted
glass absorbs light and quickly ac-
Cumulates dirt on its rOughened sur
lace thereby causing more absorption.
F'rlsmatic glass is the best reflector
known, next TO a s1lvered mirror, and
When quantity OF light without regard
10 It's agreeableness is wanted III is
lHs most eIIlclenri but It IS trying,
II not positively injurious, to the eye.
Inc best glass is believed to be white
in color as II does not change the
color OF light and is a good reflector
HlIlout. sharp shadows or points OF
orl4Ilancy- There are certain amber
shades also which have been found to
nave excellent qualities
Many New Ideas.
In the lighting Of the home there
are many new ideas both for the use
OF gas and electricity. The average
chandelier has been found to be waste
Iul and hard on the eyes partly be-
cause OF Its position. The ordinary
electric bulb and the imitation can
dies through which the gas is used.
consume two or three times as much
electricity or gas as the modern cleo
Ihe lighting Of the room now is
planned in respect to its uses New
IDEAS are constantly developing. For
instance, IN the lighting OF a bed
room it has been found that one gas
ugnt so placed that il comes directly
IN 'front.' OF my lady's dressing table,
q few inches higher than her head is
an Improvement over the side lights
In vogue several years ago and Il
IS being so placed in many homes
The substitution of the dome Iirht
FOR the chandelier in the dining room
and living room is being made almost
universally. The dome serves the pur-
pose Of good reading lamp with the
Of having no stand or base.
A novelty for home use that should
become popular is the miniature
electric light. which may be attached
to the arm Of the family sewing ma
chine, thus lessening the strain OF
needle threading upon the eyes OF the
operator. The arrangement Of electric
lights for home use is becoming a
study. They should project at an an
gle of 45 degrees. since the light
comes from the side Of the bulb more
than from the end.
rOw-GENEALOGY.