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 scientifically, instead of throwing seed haphazard in a badly ploughed soil as he mostly does to-day. 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 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.
Thus it would suffice for a man to work under the same conditions for 30 hours, say 6 half-days of five hours each, to have bread for a whole year; and to work 30 half-days to guarantee the same to a family of 5 people.
We shall also prove by results obtained nowadays that if we had recourse to intensive agriculture, less than 6 half-days' work could procure
