Graphic Methods for Presenting Facts
It would be better if the heavy line border around the edge of this chart were omitted. The heavy line at the bottom does not coincide with the zero line and the reader may be misled by reading the chart from the border line
different years so that comparisons between these different years are easily made. This scheme of superimposing curves for different years is a very common one that frequently gives an arrangement more convenient than could otherwise be obtained. It will be noticed
GRAPHIC METHODS
1900 19
1800 18
1700 n
1600 16
1500 15
1400 14
1300 13
1200 12
1100 11
1000 10
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Comparison of Electrical Output and Coal Consumption for Dec. 1912 and Dec. 1911, in Plant of Acker, Merrall & Condit Co. Building.
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