Graphic Methods for Presenting Facts
Comparison since 1850 of the Merchant Tonnage of the United Kingdom with that of the United , States
Gross tonnage is given for the United States and net tonnage for the United Kingdom. Solid lines United States, dotted lines United Kingdom. The "total" figures are not strictly comparable because '
of the difference in registration method. The general tendencies of the curves are instructive, however. Note the reduction in the foreign trade of United States since the Civil War and the steadily increasing foreign trade of the United Kingdom
at the end of each year. The repetition of the point for the last month in each year saves time to the reader and also insures against errors which might otherwise occur in the interpretation of the chart.
In Fig. 104 three distinct subjects are compared on one chart and, at the same time, the data for each subject are shown for three
GRAPHIC METHODS
MOHTmY AVERAOES OP KITTEE FAT DT UrDIAHAPOlIS MIIK.
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4.4
1906 4.0
3.6
4.4
1907 4.0
3.6
4.4
1908 4.0
3.6 4.4
1909 4.0
O 3.6
4.4
1910 4.0
3.6 4.4
1911 4.0
3.6
4.4
1912 4.0
3.6 4.4
1913 4.0
3.6
4.4
1914 4.0
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