. Bulletin of the British Museum (Natural History), Geology. 78 FRACTURED CHERT SPECIMENS FROM ISRAEL 8. Unilateral flaking—that which is directed from one face only, 9. Bilateral flaking—that which is directed from both faces of the specimen on the same part of an edge, 10. Multi-directional flaking—that which is exhibited by specimens that have been flaked from more than two directions. 11. Eolith—fractured flints from " Pre-Glacial " plateau drift and the East Anglian Crags which were at one time considered to exhibit human workmanship but which today are generally agre
. Bulletin of the British Museum (Natural History), Geology. 78 FRACTURED CHERT SPECIMENS FROM ISRAEL 8. Unilateral flaking—that which is directed from one face only, 9. Bilateral flaking—that which is directed from both faces of the specimen on the same part of an edge, 10. Multi-directional flaking—that which is exhibited by specimens that have been flaked from more than two directions. 11. Eolith—fractured flints from " Pre-Glacial " plateau drift and the East Anglian Crags which were at one time considered to exhibit human workmanship but which today are generally agreed to be natural, having been flaked by soil creep and pressure. In the following analysis of the material every specimen collected has been noted and included in the tables irrespective of whether it exhibits any fracture or not. The percentage of unfractured specimens to the whole collection is of course very much larger than the table indicates since it was clearly impracticable for the excavators to preserve everything in this category. The measurements of those preserved are, however, useful for comparison with the fractured specimens. For analysis specimens have, therefore, been divided into five groups :. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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