This steady growth of natural products is repeated in the agricultural and industrial spheres. The number of farms was given at 1.4 million in the middle of the last century, with the total value of $3,967,000,000; in 1870 there were 2.6 million farms valued at $8,944,000,000; and in 1900 there were 5.7 million, valued at $20,514,000,000. In 1870, 5.9 million people engaged in agriculture; 10.4 million in 1900. The total value of agricultural products amounted, in 1870, to $1,958,000,000, and in 1900 to $3,764,000,000. All domestic animals—cattle, horses, mules, sheep and pigs—amounted in 1850 to $544,000,000; in 1870 to $1,822,000,000; in 1900 to $2,228,000,000, and in 1903 to $3,102,000,000.
The greatest growth, however, is shown in industry. In 1850 there were 123,000 industrial plants with 957,000 employees, paying wages of $236,000,000, and with an output worth $1,019,000,000. In 1870 there were 252,000 factories, with 2 million workmen, paying $775,000,000 in wages, and with an output worth $4,232,000,000; in 1890 there were 3,550,000 factories, 4.7 million workmen, a salary list of $2,283,000,000, and a product worth $9,372,000,000. In 1900 there were 512,000 factories, with 5.7 million workmen, a pay-roll of $273,500,000, and an output worth $13,039,000,000. Statistics here cannot be brought up to the present time, since a careful industrial census is made only every ten years; but this glance over the half century shows at once that there has been a very steady increase, and that it is no mushroom growth due to the recently enacted protective tariffs.
The economic rise of the nation is well reflected in its foreign commerce. If we disregard the imports and exports of precious metals, the international commerce of the United States shows a total import in the year 1903 of $1,025,719,237, and a total export of $1,420,141,679. We must analyze these two figures in several ways, and compare them with similar figures in the past. In one way they show a decrease, since in the year 1903 the exports exceeded the imports by over 394 millions, but in the preceding year by 477 millions. This unfavourable change is not from any decrease in exports, but from a remarkable increase in imports; in fact, the exports were 38 millions more than during the previous year, while the imports were 122 millions more.