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Rh of the Missouri River, the number going to the real South being practically negligible.

In the following years the immigration was almost 3,000,000 persons—a population equal to that of the Colonies at the time of the Revolution—and these settlers added 297,000 square miles of cultivated fields to the farm lands of the country—an area equal to that of Great Britain and France combined. From 1880 to 1890 the immigration was 5,250,000, many of whom found their way onto the Western farms.

While this great migratory movement was going forward the mining, transportation and manufacturing industries were being developed to keep pace with the growing needs of the increasing population. In the field of agricultural machinery there was a great expansion and the census figures are extremely interesting. Farm machinery produced in the census years was as follows:

And during this same period the census returns show the grain crops to have been as follows: