p. 29: "Classical evidence points to the conclusion that in prehistoric ages ...
the prehistoric ages stone building was unknown, but many varieties of stones were used for carving into vases, amulets and ornaments.
Serpentine appears later, and diorite towards the close of the prehistoric ages.
The most important data bearing upon the first great period are given elsewhere in this work, and it is proposed to offer here a more general survey.5 To the prehistoric ages belong the palaeolithic and neolithic flints, from the distribution of which an attempt might be made to give a synthetic sketch of early Palestinian man.6 A burial cave at Gezer has revealed the existence of a race of slight build and stature, muscular, with elongated crania, and thick and heavy skull-bones.
From the combination of these considerations, it will be seen that the farthest date to which documentary or other records extend is now generally regarded by anthropologists as but the earliest distinctly visible point of the historic period, beyond which stretches back a vast indefinite series of prehistoric ages.