Page:Graphic methods for presenting facts (1914).djvu/141

 Adapted, from Article by Roger W. Babson in the New York Times

Fig. 111. Yearly Value of New Building Construction and Yearly Value of Buildings Destroyed by Fire in the United States, 1901 to 1911, Inclusive

With this arrangement, the percentage value destroyed by fire can be seen more readily than from the arrangement used in Fig. 110. The fluctuation from month to month cannot, however, be seen here. If both charts are used, they supplement each other very well. Remember that for these two charts the buildings destroyed are not necessarily the new buildings whose value is given. The black area represents only the value of buildings destroyed whether new or old. Note the Ben Day shading on the upper ends of the bars and the figures for the data from which the chart was made

almost three times the height of the portion shown on this illustration, it would be necessary to make two other hinges in the horizontal extension so that the peak could be bent downward and turned backward from right to left, giving something of a spiral effect. Though this bent peak may seem rather artificial, it is quite certain that the