Graphic Methods for Presenting Facts
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Fig. 55. The Growth in the Length of Ocean Liners
WoTlfs Work
This is an excellent piece of presentation for reaching an average non-technical class of readers. A smooth curve line has been drawn through the ends of the pictured ships so as to approximate most closely the general law which seems to govern progress in ship building. The smooth curve has been extended into the future as a prediction of the length of the ships which will probably be built during the next ten years.
Note the excellent use of dimension-line arrows at the base of the chart showing the materials used in ship building and the methods of driving ships at different periods in history