At the census of 1904 over 500,000 persons (excluding young children), or 37% of the population, were returned as engaged in agriculture.
And you're excluding the area on the other side of the Mississippi.
Excluding Coal for Fuel by Ocean Steamers.
It is larger than the continental United States excluding Alaska, and slightly larger than the great bulk of Europe lying east of France.
The portion of Asia west of British India, excluding Arabia and Syria, forms another extensive plateau covering an area as large as that of Tibet, though at a much lower altitude.