text:  The fair questions in examining the physiology and psychology of man with a view to his place in the creation are 1st Whether his distinctive marks and attributes taken collectively are such as broadly separate him from the rest of the animal kingdom; 2dly Supposing such distinctions to exist now whether they have existed at all periods of which we can acquire any evidence; and 3dly Whether these distinctions are common to the whole of the race to which the term _man_ is applied or whether different tribes of men differ _inter se_ as much as the species viewed collectively differs from other species