The Conquest of Bread by Peter Kropotkin

How many hours a day will man have to work to produce nourishing food, a comfortable home, and necessary clothing for his family? This question has often preoccupied Socialists, and they generally came to the conclusion that four or five hours a day would suffice, on condition, be it well understood, that all men work. At the end of last century, Benjamin Franklin fixed the limit at five hours; and if the need of comfort is greater now, the power of production has augmented too, and far more rapidly.

In speaking of agriculture further on, we shall see what the earth can be made to yield to man when he cultivates it in a reasonable way, instead of throwing seed haphazard in a badly ploughed soil as he mostly does today. In the great farms of Western America, some of which cover 30 square miles, but have a poorer soil than the manured soil of civilized countries, only 10 to 15 English bushels per English acre are obtained; that is to say, half the yield of European farms or of American farms in the Eastern States. And nevertheless, thanks to machines which enable 2 men to plough 4 English acres a day, 100 men can produce in a year all that is necessary to deliver the bread of 10,000 people at their homes during a whole year.