Page:The Conquest of Bread (1906).djvu/306

 grinders have rendered a great service to humanity in teaching us that the soil can be "made." They make it with old hotbeds of manure, which have already served to give the necessary warmth to young plants and to early fruit; and they make it in such great quantity that they are compelled to sell it in part, otherwise it would raise the level of their gardens by one inch every year. They do it so well (so Barral teaches us, in his "Dictionary of Agriculture," in an article on market-gardeners) that in recent contracts, the market-gardener stipulates that he will carry away his soil with him when he leaves the bit of ground he is cultivating. Loam carried away on carts, with furniture and glass frames—that is the answer of practical cultivators to the learned treatises of a Ricardo, who represented rent as a means of equalizing the natural advantages of the soil. "The soil is worth what man is worth," that is the gardeners' motto.

And yet the market-gardeners of Paris and Rouen labour three times as hard to obtain the same results as their fellow-workers in Guernsey or in England. Applying industry to agriculture, these last make their climate in addition to their soil, by means of the greenhouse.

Fifty years ago the greenhouse was the luxury of the rich. It was kept to grow exotic plants for pleasure. But nowadays its use begins to be generalized. A tremendous industry has grown up lately in Guernsey and Jersey, where hundreds