Cubic feet to liters...

28.3

Cubic feet to cubic meters..

.03

Cubic feet to gallons..

6.2

Cubic feet of water to pounds.

62.27

Cubic yards to cubic meters.

.76

Gallons to liters

4.5

Gallons to cubic meters.

.0045

Gallons to cubic feet..

.16

Gallons of water to pounds.

10.

Pounds of water to gallons.

.1

Pounds of water to cubic feet.

.016

Pounds of water to liters...

.454

Milligrams to grains...

.015

Grams to grains

15.4

Grams to ounces

.035

Kilograms to ounces

Kilograms to pounds

Kilograms to cwt.

Kilograms to tons

Grains to milligrams

Grains to grams

35.3

2.2

.02

.001

64.8

.65

Ounces to grams..

28.35

Pounds to grams

453.6

Pounds to grains troy.

7000.

Pounds to kilograms

.45

Feet per minute to miles per hour..
Miles per hour to feet per minute.. 88.

ELECTRICAL UNITS DEFINED.
Ohm-Unit of resistance; represents resistance
offered to an unvarying electric current by a
column of mercury at the temperature of
ice. 14.5421 grams in mass, of a cross-sec-
tional area of 1.00003 square millimeters and
of the length of 106.3 centimeters.
Ampere-Unit of current, decomposes .0009324
of a gram of water in one second or de-
posits silver at the rate of .001118 of a
gram per second, when passed through a
solution of nitrate of silver in water.
Volt-Unit of electromotive force; one volt
equals one ampere of current passing through
a substance having one ohm of resistance.
Coulomb-Unit of quantity: amount of elec-
tricity transferred by a current of one am-
pere in one second.

Farad-Unit of capacity: capacity of a condenser charged to a potential of one volt by one coulomb. A microfarad is one-millionth of a farad.

Joule-Unit of work: equivalent to energy expended in one second by one ampere current in one ohm resistance.

Watt-Unit of power: equivalent to work done at the rate of one joule per second. A kilowatt is 1,000 watts.

.005 .0113

STATUTORY WEIGHTS OF THE BUSHEL.

28888288: 88888888888888888: 88888888888: 88888888 | Wheat.

: : : : : : :RR : :R :RRR : : :R::RRRR: R R R : :R :RRA::::8

Bran.

88888888: 888888882: 8888888::: 888886: 8: : : 88: 8::: | Clover seed.

WEATHER FORECASTS AND SIGNALS.

The operations of the weather bureau of the department of agriculture are based on observations of the weather taken at about 200 observatories throughout the United States at the same moment of time and telegraphed daily to Washington, D. C., and to other important cities. These observations, comprising barometric pres. sure, temperature. precipitation, winds and clouds, are entered upon outline charts of the United States by means of symbols, forming the "daily weather map." from which the forecasts are made. These forecasts are issued every day for every state in the union, and whenever necessary special warnings are sent out of storms,

frosts, cold waves, heavy snows and floods. In addition to the main office in Washington, there are subordinate forecast centers in Chicago, New Orleans, Denver, San Francisco and Portland, Ore. Weather forecasts for a week in advance are now sent out from Washington.

The forecasts are first telegraphed to about 2,300 principal distributing points, whence they are further disseminated by telegraph, telephone and through the mail by means of forecast cards, rural free delivery slips and newspapers.

It is estimated that the total number of per sons in the United States to whom the weather' forecasts are available is more than 4.000.000.

When No. 4 is placed above No. 1, 2 or 3 it about stationary. During the late spring and Indicates warmer; when below, colder; when not early fall the cold-wave flag is used to indicate displayed, the temperature is expected to remain anticipated frosts.

Small craft. Northwest winds. Southwest winds. Northeast winds. Southeast winds. "Hurricane" signal. STORM-WARNING FLAGS.

AMERICAN AND WORLD CROPS COMPARED.
[From U. S. monthly crop report.]

The United States produces on an average about three-fourths of the world's corn crop, one-fifth of the wheat crop, one-fourth of the oats crop, one-eighth of the barley crop, onethirtieth of the rye crop, one-sixteenth of the potato crop, three-fifths of the cotton crop, onefourth of the flaxseed crop, one-third of the

54,934,621 37.451.610 152,142,232 152,142,232

2,742,854

19.112 24,756,974

tobacco crop, one-fourth of the hops crop and one-tenth of the sugar crop. In rank of production the United States is first for corn, wheat, oats, cotton, tobacco and hops; second for barley and flaxseed; fourth for sugar, and fifth for rye and potatoes.

SIMPLE INTEREST TABLE.

NOTE-To find the amount of interest at 2 per cent on any given sum, divide the amount given for the same sum in the table at 5 per cent by 2; at 3 per cent divide the amount at 7 per cent by 2, etc.

Amt.

Interest.

81

7

3

6

$3 5

1667

3

84

1667

4

5

85

3

567

3

4

8 10 12 14 16 18 19 39 58 1.17 1.75 2.33 2.92 3.501 7.00

COMPOUND INTEREST ON ONE
4%. 5%. 6%. 7%. Years.

28 42

83 1.25 1.67

33 50 1.00

1.50 2.00 2.50 3.00 6.00

1988

1223

222

1

1

12345 to

22345 POOL

66021

4678

358

11

8 16

10

10 12

14

7

8

10

15

15

35

1.00

63

1.25

1.50

88 1.75

1.50

5 ft. 1 in....128 pounds 5 ft. 4 in....149 pounds 5 ft. 7 in....158 pounds 5 ft. 10 in....181 pounds 5 ft. 2 in....135 pounds 5 ft. 5 in....152 pounds 5 ft. 8 in....166 pounds 5 ft. 11 in....186 pounds 5 ft. 3 in....142 pounds 5 ft. 6 in....155 pounds 5 ft. 9 in....173 pounds 6 ft. 0 in....190 pounds HEIGHTS AND WEIGHTS OF CHILDREN.

Years. Years. Rate.
100.00 69.66 416.
66.66 46.56 5
50.00 35.00 5.
40.00 28.07 6
33.33 23.45
28.57 20.15 7
25.00 17.67 7%..

Years. Years.

22.22

15.75

20.00

14.21

18.18 12.94

16.67 11.90

6.

15.38 11.00

Weight.

Height.