Waste lands, of the greatest natural fertility, are to be had for a trifle.

拥有最大自然肥力的荒地是为了一点钱。

When the capitals are equal, and equally well applied, it is in proportion to their natural fertility.

当资本相等且运用得同样好时， 它与它们的自然肥力成正比。

It is greater or smaller, according to the supposed extent of those powers, or, in other words, according to the supposed natural or improved fertility of the land.

它的大小取决于这些权力的假设范围，或者换句话说，根据土地的假设自然肥力或改良肥力。

The produce of land, mines, and fisheries, when their natural fertility is equal, is in proportion to the extent and proper application of the capitals employed about them.

土地、矿山和渔业的产品， 当它们的自然肥力相等时， 与它们周围使用的资本的范围和适当使用成正比。

Their lands are in general better cultivated, and having more labour and expense bestowed upon them, produce more in proportion to the extent and natural fertility of the ground.

他们的土地通常耕种得更好， 投入更多的劳力和费用， 产出更多，与土地的面积和自然肥力成正比。

But those nations were by no means so weak and defenceless as the miserable and helpless Americans; and in proportion to the natural fertility of the countries which they inhabited, they were, besides, much more populous.

但这些国家绝不像悲惨无助的美国人那样软弱无助。此外，与他们所居住国家的自然肥力相比，他们的人口要多得多。