. Description of the test specimen of the rostro-carinate industry found beneath the Norwich Crag . ce has a thin layer of irregular sand-likegranules adhering to it, such as is often seen in paleoliths from river gravels. Theadhesion is probably due to a deposit of calcium carbonate, but I have not testedits chemical nature. When we thus closely examine the fractures by which this piece of flint hasbeen shaped, it becomes evident that they have been administered in definite orderand that each and all have been directed so as to produce the symmetrical formand peculiar beak-like shape which it
. Description of the test specimen of the rostro-carinate industry found beneath the Norwich Crag . ce has a thin layer of irregular sand-likegranules adhering to it, such as is often seen in paleoliths from river gravels. Theadhesion is probably due to a deposit of calcium carbonate, but I have not testedits chemical nature. When we thus closely examine the fractures by which this piece of flint hasbeen shaped, it becomes evident that they have been administered in definite orderand that each and all have been directed so as to produce the symmetrical formand peculiar beak-like shape which it now presents. Not one of these fracture-surfaces can be regarded as accidental or as inappropriate to the realization of Bostro-Carinate Industry found beneath the Norwich Crag. 11 the ideal rostro-carinate pattern. It is not possible (it seems to me) to entertainthe supposition that these twenty-five distinct blows resulting in this specialpattern or shape already recognized in other examples are due to a fortuitousconcourse and reciprocal battering of flint-nodules. The posterior face of the.
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Keywords: ., bookauthorlankestererayedwinray, bookcentury1900, bookdecade1910
