Free migration would result in an overshift of population into urban areas and probably an overshift out of interior regions.

The dog barked at his own reflection in the mirror.

Hockett and Ascher go back to the period of dessication in the Pliocene when the forests were disappearing and the savannah was opening up.

Towards the end of the eighteenth century , Professor Wilson of Glasgow , being engaged in a series of experiments for making etchings upon glass with fluoric acid for the purposes of art , thought it possible to make polytypes of glass from engraved copperplates