In a dot map it is important to know whether the dot has been placed in its exact

geographical position or whether the dots are distributed within a county or state irrespective of the exact location.

2. In this case, there is little doubt but that the dots were placed where the potatoes were

produced.

WPA. Division of Social Research. 'Rural Youth on Relief." 1037. B. Rural Rehabilitation Cases Receiving Advances of Capital or Goods in the United States in 1935.

1. Note the square of dots in the state of South Dakota, as well as in other states. This

indicates that the distribution of the dots was by counties; that is, statistics for each county were secured and the dots were distributed in each county irrespective of the exact geographical location.

2. Compare with A above.

DOT AND PIN MAPS

Eoch dot represents $ 1,000 or fraction ttiereof

WPA. Divition of Social Rctfarch, "Landlord and Tenant on the Cotton Plantation," 1936.

Amount of Emergency Crop and Feed Loans Extended by the Farm Credit Administration, by Counties in the United States in 1932 and 1933.

1. The distribution of the dots in this chart is definitely by counties.

2. The shift from the Dakotas in the one year period is quite pronounced.

GRAPHIC PRESENTATION

Sidewalk

-f

PRIVj

Private driveway

A. Graphic Distribution of Position at the Time of the Accident of 50 Pedestrians Who Were Hit by Automobiles in Hartford, Connecticut, During the First Six Months of 1927.