The knavery and extravagance of their stock-jobbing projects are sufficiently known, and the explication of them would be foreign to the present subject.

他们股票交易项目狡猾和奢侈众所周知， 对它们对当前主题来陌生。

But in what manner this operation is performed, and in what manner it tends to increase either the gross or the neat revenue of the society, is not altogether so obvious, and may therefore require some further explication.

，这种操作以何种方式进行，以及它以何种方式倾向于增加社会总收入或净收入，并不完全那么明显，因此可能需要进一步。