It is beautiful to behold, and healthy to work in; a joy and blessing alike to the eye, and the mind, and the body: and yet it is a manufactory.
But a manufactory of what?
Of milk of course, and cows, and sheep, and horses; and of your body and mine--for we shall drink the milk and eat the meat.

And therefore it is a flesh and milk manufactory.

We must put into it every year yard-stuff, tank-stuff, guano, bones, and anything and everything of that kin, that Madam How may cook it for us into grass, and cook the grass again into milk and meat.

But if we don't give Madam How material to work on, we cannot expect her to work for us.

And what do you think will happen then?
She will set to work for herself.