“ Education.—Both elementary and secondary education are free to all persons from 6 to 21 years of age. Attendance between the ages of 8 and 16 at a public day school is compulsory. There were in 1918, 88,848 pupils enrolled in 5,296 elementary schools. ”

“ Other mineral products include copper, lead, stone, and clay products.
Soil and Agriculture.—The soil is a light but rich loam overlying a fertile clay sub-soil, and is especially adapted to raising cereals. Wild fruits grow in great abundance, rich grass covers the prairies in the E. and Black Hills and Bad Lands afford excellent advantages for dairy farming and stock raising. The acreage, production, and value of the principal crops in 1919 was as follows: corn, 3,200,000 acres, production 91,200,000 bushels, value $108,528,000 ”

“ The Black Hills contain some of the most valuable mineral deposits in the United States. Gold is the most important mineral production in the State. It comes almost entirely from the Black Hills. The production in 1919 was 254,820 ounces, valued at $5,267,600. ”