FIG. 53. A Composite Circle Chart

In this chart the railroad lines serving the territory have been mapped, and the territory has been blocked off into zones determined by the rates that apply from

given stations. The stations immediately south of Cape Girardeau are in a 13-cent zone. Southeast of that is a 14-cent zone, and southeast of the latter a 15-cent zone. This plan enables industries to determine readily the layout of the tariff and its effect on

the tonnage of the class under consideration from a given district.

COMPOSITE GRAPHS

Fig. 55 illustrates the composite type of graph, wherein the territory is depicted by a map and the

SUTARK

AUDERDALE

CHERRY EXHIBIT 9, CORRECTED.-STATEMENT SHOWING RATES IN CENTS PER 100 POUNDS ON CEMENT, CARLOADS, FOR DISTANCES STATED

corresponding rate adjustment, present and proposed, is appended in a two-dimension graph. This graph was used in a rate case between the Mt. Pleasant Fertilizer Company and the New Orleans & Northeastern Railroad Company et al.

RATE TABULATIONS

Sometimes the rate adjustment does not readily lend itself to charting by the graph method, and it is necessary to resort to tabulations indicating the rate on like commodities from the same shipping point, as in Fig. 56, or on the same commodity in different localities, according to the regional rate adjustment that may obtain therein, as indicated in Fig. 57.

MULTIPLYING COPIES

Quite frequently, especially in rate cases, numerous copies of the exhibits introduced must be prepared for the use of the parties interested in the proceeding. Copies must be furnished to the commission, the examiner, the opposing counsel, and far associated witnesses. As a consequence, in the preparation of these charts consideration must be given to the methods to be used in making the copies.

From an original black and white sketch, zinc plates may be obtained by a photographic process; the needed copies can then be printed. Or the original may be drawn on tracing cloth or paper, and blue or black prints can be made from the original. Or the graph may be photographed in the usual way, and prints can be made from the negative. Fig. 58 represents an exhibit that was made in the last manner.