Graphic Methods for Presenting Facts
Comparison in Size of Trainload on the Chicago, Buriington & Quincy Railroad in 1901 and in 1912
Here one locomotive is above the other but both face in the wrong direction. Figures for the data are not given and the reader cannot tell whether the two lengths compared should include the locomotives or only the cars. Clearness could have been assured if the cars had been shown for comparison in solid black, with the locomotives included for pictorial effect, but only in outline
COMPARISONS INVOLVING TIME
In Fig. 42 the idea is brought out that the raihoads are now handhng more freight. The drawing, however, should be reversed so as to have the two locomotives one above the other facing to the left, with the additional cars at the right-hand end. It would also be better if the dates for the two years and the figures representing tons had been placed at the extreme left in the manner shown in Fig. 41.
In Fig. 43, the two locomotives are placed neck and neck, but the whole chart reads backwards in that it reads to the left instead of to the right. Turn the page over and hold it up to the light. Through the back of the paper, the arrangement of the cars appears from left to right as it should.
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I880
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PRODUCTION I EXPORT
UPPER riGURES
MILLIONS OF BALES LOWER FIGURES
MILLIONS OF DOLLARS
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