CHAPTER XXII.

Life of the Post-Pliocene period--Effect of the coming on and departure of the Glacial period upon the animals inhabiting the northern hemisphere--Birds of the Post-Pliocene--Mammalia of the Post-Pliocene--Climate of the Post-Glacial period as deduced from the Post-Glacial Mammals--Occurrence of the bones and implements of Man in Post-Pliocene deposits in association with the remains of extinct Mammalia--Literature relating to the Post-Pliocene period.