Geographical Shift in Cof+on Manufacturing in the United States from 1923 to 1937.

1. Bar charts may be used as effectively as sector charts in presenting information for

geographical divisions.

2. Note the method of outlining in black the section of the United States to which specific

groups of bars refer.

3. See 93 A 4.

MAPS WITH BAR CHARTS

"The Frdrral Chart Book," Prepared by the Central Statistical Board and National Resources Committee. January 1938. SCALE .7

A. Population and Area of the United States by Regions in 1900, 1930, and 1935.

1. When the United States is divided in this way, the horizontal hars seem to fit into the

spaces very well.

2. See 93 A 4.

U. S. Department of Agriculture, Bureau of Agricultural Economics

SCALE .5

Percentage of All Farmers Buying Cooperatively in the Various States in 1919, 1924. and 1929.

1. All the various types of charts shown in the bar chart section are applicable to maps.

2. When it it impossible to put the bars on top of the state, such as is the case with Rhode

Island and New Jersey, arrows connecting the bars with the state aid in reading the chart. Compare with 202A.

GRAPHIC PRESENTATION

U. S. Department of Agriculture, Bureau of Agricultural Economics. SCALE .4

A. Average Sales Per Farm Through Cooperative Associations for Each of the United States in 1919. 1924, and 1929.

1. While this same material could be presented in a series of groupings with a common