Page "On the Origin of Species" Paragraph 78

The Examiner review of 3 December 1859 commented, " Much of Mr. Darwin's volume is what ordinary readers would call ' tough reading ;' that is, writing which to comprehend requires concentrated attention and some preparation for the task.

All, however, is by no means of this description, and many parts of the book abound in information, easy to comprehend and both instructive and entertaining.