Weekly graphic. [volume] (Kirksville, Adair Co., Missouri) 1880-1949, 1891-06-19
The times when thunder should

The times begins becomes violent and should
also gven with phenomena which to show the
of the storm.
1t impossible exaggeae the meteorological value OF accurate
observations each county State They enable
the upon the of the State The outline
the and march may be thus readily
Observations made edge of the fully
valuable as those the place Of the greatest violence
Rainfall This the most important OF the observations IN local
The rainfall measured by of rangaug OF which
many 1t very desirable uniformity in the
The simplest form of cylinder OF
cylinder mounted firmly vertical position The depth
gauge by dipping slender rod
scale the observing the wetted height
having opening times the OF the
cylinder collected inch of rainfall will then stand
ten deep collector The Signal Service standard has
collecting of brass inches diameter beveed to sharp inns
galvanized iron funnel The receiver tube Of seamless
the inside diameter being 253 inches and 20 inches Deep
instrument feet height The measuring stick is OF
seasoned cedar thick and graduated inches
ten and hundeths The also provided with
overflow that the filling of the prevented
matter
the roof of small building which
building obstacle and around which the
with increased velocity drifting fall
the building to the eeward OF the building IN an irregular manner
Gauges parts such roof will show differences of from rs to
each other An admirable for in the
open clearing forest with underbush where
drifts initiated by planting hedge of
gauge Such shield checks the without
detecting it in such form drifting edde
which they should collect by of the drifting effect of wind
which sweeps up tops any other obstacle
The raguge does collect snowfall properly for the
drifting much marked than
The snowfall determined follows smooth board
placed with surface flush with the ground place where
The depth of the measured the inch
measure determined nveng the gauge
thusng upon the board cylinder
of snow within sheet of tin is then thrust under the mouth of the
which then raised carried into and the
The resulting measured in the
noted the column of phenomena nappre-
amount, should be expressly indicated 1t enough
of the blank, this might be the result of
neglect o observe, failure copy the amount.
The best instruments for the determination of
the maximum and thermometers These instruments
expensive than good thermometer but give
much and valuable character and the readings
require time Moreover it not read them definite
time the with the thermometer.
the highest temperature of the
day. which ordinarily at reading
generally be taken time during the afternoon
minimum thermometer the lowest of the night
which usually shortly before SUNRISE and this also ordinarily
read time during the forenoon evening" unless change
should threaten show lower the afternoon than
had occurred during the previous night
maximum differs from the ordinary mercury
mometer having place through
expansion mercury the bulb When the temperature
falls the the tube above the Of the tube
in position the reading the the column the
reached The thermometer metal SCALE and
placed nearly horizontal position The forced back into the
bulb by whng the the SCALE when ready
for reading.
thermometer thermometer
rather wide BORE Within the tube and inside the liquid slender
cylindrical index of glass; with rounded ends somewhat enlarged like the
head pin When the temperature falls the surface of the column of
alcohol towards the bulb and pushes the index before When
the temperature again RISES the liquid flows the index leaving with
its upper extremity the lowest point reached by the surface This
horizontal position The
set for reading by fitting the bulb end and allowing the index
slide to the surface of the alcohol column.
These readings the and of each day.
important in study the effects of temperature vegetation The
of these two temperatures u.s. the almost exactly the
the temperature of the day. obtained by taking hourly
readings The difference between and readings
called the daily range of temperature.