its efforts more or less uncertain. In multiplying this sort of rude produce, therefore, the efficacy of human industry is not only limited, but uncertain.

In multiplying another very important sort of rude produce, the quantity of fish that is brought to market, it is likewise both limited and uncertain. It is limited by the local situation of the country, by the proximity or distance of its different provinces from the sea, by the number of its lakes and rivers, and by what may be called the fertility or barrenness of those seas, lakes, and rivers, as to this sort of rude produce.

As population increases, as the annual produce of the land and labour of the country grows greater and greater, there come to be more buyers of fish, and those buyers, too, have a greater quantity and variety