674 



HISTORICAL GEOLOGY 



REFERENCES FOR BIRDS 



Hutchinson, H. N., — Extinct Monsters and Creatures of Other Days, pp. 220-230. 



Lankester, E. R., — Extinct Animals, pp. 240-244. 



Lucas, F. A., — Animals of the Past, pp. 138-151. 



New International Encyclopedia, and Encyclopedia Britannica. 



Prehistoric Man 



The record of prehistoric man and his ancestors is a matter of 

 geological as well as of anthropological investigation. Our knowledge 

 of the presence, although not of the evolution, of prehistoric man is 

 far more complete than of other animals, because the source of 

 information is not confined to his bones, but is obtained also from 

 the implements of stone which he made and the discovery of which is 

 especially likely, as they were frequently lost in fishing or in the chase. 

 Moreover, since they are practically indestructible, they are preserved 

 after the skeletons of their makers have been destroyed. 



It is a mooted question whether or not man existed in America 

 at an early period, but in Europe the remains of prehistoric man have 

 been found in situations which prove beyond question their antiquity. 



A brief classification based on the evolution of human implements 

 in Europe is as follows : 



Recent 



Iron Age 



The Present. 



Bronze Age 



Implements of bronze as well as of stone. 

 Some tribes passed directly from the Stone to 

 the Iron Age. 



Stone Age 



Prehistoric 



in the Old World 



Neolithic (Greek, neos, new, and lithos, 

 stone). Implements of stone, often polished 

 and with ground edges. 



Pleistocene 



Paleolithic (Greek, paleos, old, and lithos, 

 stone). Stone implements, rough with chipped 

 edges but never ground. 





Eolithic (Greek, eos, dawn, and lithos, stone). 

 Dawn of the Stone Age. Implements so crude 

 that it is often difficult to distinguish them 

 from those made by accident. 



Tertiary 



