The resin, thus extracted from varieties of triodia was a key ingredient for binding the stone blades to native hafted adzes, which were of two types, tula and burren, the former, the type used by spinifex people, using the distal edge, the other the lateral edge, for working materials.
32.
The Plateau of Ambel is one of the residues of an ancient alluvial plain created by a glacial barrier which was at the location of the current dam and subsequently cut through by the Drac and Souloise . Corps to the east and Pellafol to the west are located on the lateral edges of the plain at the same altitude.
33.
Of these, the first is the largest; it is flattened from before backward, and often ascends to join the lower part of the thin lateral edge of the sacrum, thus completing the foramen for the transmission of the anterior division of the fifth sacral nerve; the others diminish in size from above downward, and are often wanting.
34.
Lateral to either olfactory groove are the internal openings of the anterior and posterior ethmoidal foramina; the anterior, situated about the middle of the lateral margin of the olfactory groove, transmits the anterior ethmoidal vessels and the nasociliary nerve; the nerve runs in a groove along the lateral edge of the cribriform plate to the slit-like opening above mentioned; the posterior ethmoidal foramen opens at the back part of this margin under cover of the projecting lamina of the sphenoid, and transmits the posterior ethmoidal vessels and nerve.
