Manners and monuments of prehistoric peoples (1892)
Nadaillac, Jean-François-Albert du Pouget, marquis de, 1818-1904, D'Anvers, N., d. 1933 · New York, London : G.P. Putnam's sons · leaf 265
IC PEOPLES. shafts opened out towards tlie top like funnels, andthey were not more than three feet three inches belowthe surface, the flint having been struck at that depth(Fig. 73). These shafts were, in many cases, con-tinued by galleries, as seen in our illustration (Fig.74), or by trenches,… … Ifc.l m J~ Fig. 73.—Section of a flint mine ; t vegetable earth,Marly limestone, s flint. pure limestone, c in Traces of charcoal, too, reveal the path they took, andwe learn at the same time that they used fire to helpthem in their work. M. Boule,^ from whom we borrow these details, can-not…
Archaeology
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