Nothing bears the grim warning over the bolted door, "No admittance here except on business!"-- meaning by business, exclusively and sharply, the buying of certain wares of the establishment at a good round profit to the manufacturer, without carrying away a single scintillation or suggestion of his skill.

If he has invented or adopted machinery or a process of labor which enables him to turn out cheap muslin at three farthings' less cost per yard than his neighbors can make it, he seals up the secret from them with the keenest vigilance.

Not so in the great and heaven-honored industry of agriculture.

Its experiments and improvements upon the earth's face are all put into the common stock of human knowledge and happiness.

They can no more be placed under lock and key, as selfish secrets, than the stars themselves that look down upon them with all their golden eyes.