The citizen. (Frederick City, Md.) 1895-1923, 1900-02-23

make 1t do mans drudgery at practi.
cally no cost; to make it hew his wood
and draw his water, run his railroads,
furnish light and heat to cities, propel
vessels across the ocean-in short,
to substitute it everywhere for the
present use of coal and wood and 9th
er fuels-has been the dream OF De
Cous, Herschel and of Ericsson. Pro-
fessor Langley, of the Smithsonian
Institution, has written powerful
words calling attention to the Reces.
sity for such an invention. He has
declared that the human race must
depend in the future upon the sun for
heat and power. 1t is a method for
the utilization Of this heat of the sun
in practical way that DR.. William
Calver claims to have discovered. In
substantiation of his claim, he attains
results which would seemingly con-
vince the most skeptical. DR.. Calver
seems thoroughly wrapped up in the
work that he has accomplished and
the work that he has in view.
Il believe, in fact, l knew" said he,
in answer to question, that have
solved the problem of the direct con-
version of the suns rays into heat,
which can be used on far cheaper
commercial basis than coal | have
also devised a method for the storage
of this heat so that it can be used at
any desired time and place. | feel
that beyond doubt have settled for
ever the question of the actual COM
mercial Harvesting of the direct rays
of the sun and of their adaptation to
the needs of man.
There is no limit to the intensity
of the heat which l can generate.
With the concentrated rays Of the
sun collected against the mountain
side | could melt the rocks and cause
the earth to burn like living volcano.
| can produce in one spot a heat vast
er and more fierce than that on the
face of the sun itself, and greater
heat than any now attainable through
the combustion of known substances
or through the agency of the electric
arc, which now furnishes the Asrcest
heat known to man.
1.-THE cost of this heat for CONNER.
cial purposes 10 not a 1.-THE Of the
cost of digeing and raising coal and
cutting down timber. With heat thus
generated shall be able to snek east.
ly the hardest SnG NEST rebeiliOus OF
the ores. With 1t | shall make a quail.
ity of glass which cannot exist at pres
ent. With it an innocuous gas can be
made at far less cost than that of
our present coal gas.
This motor consists of the simplest
arrangement possible. Each of the
small fiat nirrors is attached to a
dnwfaA vi aI, L
moved at pleasure. Each or all of
these little surfaces can be concen.
trated on a very small surface ut any
desired distance. In practice tAey are
concentrated @ the reservoir in the
centre of the yard. Each glass re-
fleets from twelve to ffteen degrees
of heat from the SUM-"
''Hew about the point of concentra-
ton when the sun moves around?"
was asked.
THAT is simple enough" said DR..
Calver. "The frame moves, too. It
is geared and adjusted in such a sim
pie manner that it can be moved along
the circular track by even the most
ignorant of attendants. One man could
keep a great number of these ma
chimes focused on a single point. All
that is required is the occasional ad-
justment of some pulleys.
But how about the cloudy and
rainy days?" was asked.
From the 1900 mirrors in the lab
eratery here l have generated on the
coolest days sufficient heat to weld
copper and Russian iron. | have
burned a brick halfway through in
less than an hour. have concentrat.
ed the combined heat from the mir.
rors on an unburnsd brick, and have
burned it so hard that it scratched
STEEL"
DR.. Calver picked up a stick from
the frozen soil. He mounted the res
orvoir and focused the heat of the
mirrors upon portion of the frozen
wood. In a moment it cracked,
smoked and burst iato a fierce flame.
Wives in Panganyika are consid.
cred luxury, and even in Zululand
they cost from $3.50 to $500, but on
the Tansanyfka plateau one can he
had for five or six goats. One goat
equals 8 to 20 cents, therefore one
wife EQUALS s120.
VAL peper that has become bruised
o. % al in small patches. and can.
mo- ~ cAc3 may be repaired with
ornlAlt3 paints Mix the