Amador ledger., 1910-08-19

There will be enough to eat durinj
the next forty years at least, if tn,
conclusions of Prof. M. A. Carleton
of the United States Department o.
Agriculture, are justified. Of the
], 300, ,947, 200 acres constituting tn,
total land area of the United States
the farms occupied 1893, sol, TIA acres il
1900, and should exceed 1, 300, 900, O0(
acres in 1850, when the improved farm
area should be 760, 900, 900 acres. The
area in wheat which has averaged Sc
per cent for several decades-shoulc
be per cent by 1850, or a total OF
about $4,000, 900 acres. At 20 bushels
per acre, bushels being allowed as
the increase in yield, this area would
produce l, 900, 900. 600 bushels of wheat.
One prediction is that the United
States will have population of 200,
900, 900 in 1850, and if this should be
realized and the per capita consump-
tion of wheat should increase from the
present bushels to bushels, then
the country can just supply its own
wheat. 1t is extremely improbable,
however, that either population or con-
sumption will reach the high point
named. To the 9OO,OOO.O 900 bushels
estimated as the increase in United
State yield may be added l, 500, 900, 900
as the probable increase in production
of Canada, the "black earth" area of
eastern Europe and Siberia. and Ar
gentina, making total increase of
2, 400, 600, 900 bushels IN the chief ex-
porting countries. Reasons are found
for placing the worlds demand for
wheat at $500, 600, 600 bushels in 1850,
an increase of 1000, 900, 600 bushels
over the present, so that an ample
supply is probable.
The thoracograph of DR.. Dufestel
includes an 18-inch copper ring, which
is placed around the subjects body,
and supported at any desired height.
AS small carriage moves around the
ring, an ebonlte wheel pressing against
the PERSONS body, acts on a panto-
graph that draws on cross-ruled paper
an exact contour of the chest-infated
or debated.
Heating lubricating oils to 450 deg.
F. is the simple test given the Ameri-
can society for testing materials. In
ferior oils darken; good oils show
little change.
The so-calIed "dew ponds" of the
DOWNS" are still an interesting prob
lem. They are all artificial, some of
them modern but others older than the
knowledge of man, and they may
supply the hilltop with an abundance
of water while the lowland is parched
with drouth. They may be 80 to rs
feet in diameter, the depth of water
being not more than three or four
feet. An impervious bottom is neces-
sary to the dew-pOnd, and usually
consists of layer of puddled chalk or
clay, over which is spread a layer of
rubble, with straw between or below
the two layers. A current theory is
that this heat insulated bottom con-
denses the invisible moisture of the
air into dew, that keeps the cool
basin filled. 1t appears that this
view is not universal. however, for
in some localities the ponds have been
known as cloud-ponds, - fog
ponds" or mist-ponds." q Among
meteorologists, the opinion has been
that RAIN alone may fill the
basins, although their position on
SUBMITS does not admit of accumula-
ton by drainage. After extensive
on behalf of the Royal
Society, Edward A. Martin concludes
that much of the water is supplied in
Sussex and Kent and carry heavy loads
of moisture. Places especially ex-
posed to these fogs seem to have been
for the ponds.
How the heart is affected by diff,
ferent kinds of work is not known, but
the engineer at least appears to be
peculiarly liable to heart trouble. This
terminates fatally in his case at the
average age of go. These conclusions
are reached by a British statistlcian
from study of the annual report of
the Amalgamated Society of Engi-
neers, which has a membership of
more than 100000, and publishes
tables showing 214 deaths
from affections of the heart, in each
1000. but only SO from pneumonia, SO
from bronchitis, and 81 from old age.
A new German method of decorating