A pound of tea, surely a luxury item, required as much as a day's pay to obtain. A bushel of potatoes might cost a half-day's wages, and a pair of boots from two to five day's pay, an amount equal to a full month's house rent. In general, material life in the 1860s was sparse by today's standards. The types of products generally offered to consumers were plain and basic; and if adequate in quantity, they were not available in overwhelming abundance. The United States of 1860 was, of course, primarily an agricultural nation, although manufacturing was growing rapidly and the nation had become something of a sea power. Machines had been introduced into several kinds of production, in the making of clothing and shoes and in food processing, for example. Some mechanization had taken place in agriculture, notably with the introduction of the reaper, the thresher, the cotton gin, and the all-steel plow. Steam had been applied to water and land transportation. But the products of the nation were products of the soil, in the main. Hard manual labor and common sweat were the principal instruments of progress, and the relatively few machines in existence were in the hands of producers, not consumers. Within the next century, the face of the country and the nature of production would change entirely.5 5Qualitative changes in the nature of production