The Transition from Rostro-Carinate Flint Implements to the Tongue-Shaped Implements of River-Terrace Gravels . Lankester. In fig. 2 a diagram is given showing how such production isaccomplished. The continuous line represents the outline of the rounded nodule offlint. A heavy blow is struck at the point A, and the line of fracture, shown by the dottedline (the direction of the force responsible for the cleavage is indicated by an arrow),continues to the point B. The portion of the flint nodule above the line A-B is thusremoved, and a flat surface produced. Another heavy blow is then delivered
The Transition from Rostro-Carinate Flint Implements to the Tongue-Shaped Implements of River-Terrace Gravels . Lankester. In fig. 2 a diagram is given showing how such production isaccomplished. The continuous line represents the outline of the rounded nodule offlint. A heavy blow is struck at the point A, and the line of fracture, shown by the dottedline (the direction of the force responsible for the cleavage is indicated by an arrow),continues to the point B. The portion of the flint nodule above the line A-B is thusremoved, and a flat surface produced. Another heavy blow is then delivered at thepoint C, and the line of fracture continues to the point D. The portion of the flint * Description of the Test Specimen of the Rostro-carinate Industry found beneath the NorwichCrag/ Roy. Anthr. Inst., Occasional Papers, No. 4, p. 8. TO THE TONGUE-SHAPED IMPLEMENTS OP KIVER-TERRACE GRAVELS. 335 nodule below the line C-D being thus removed, a second flat surface is accomplished this, a by no means easy task, it is possible to proceed to thefashioning of the rostro-carinate H^y
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Keywords: ., bookcentury1900, bookdecade1920, bookidphiltrans003, bookyear1920
