It is evident that one cannot say anything demonstrable about the problem before having resolved these preliminary questions, and yet we hardly posse….

All organs of an animal form a single system, the parts of which hang together, and act and re-act upon one another; and no modifications can appear ….

The works which this man [Joseph Banks] leaves behind him occupy a few pages only; their importance is not greatly superior to their extent; and yet ….

Moreover, it thus follows that not a great deal of time was needed for the large animals of the three major parts of the world to become known to the….