Guettard-1746-carte mineralogique où l on voit la nature et la situation des terreins qui traversent france et angleterre, Philippe Buache

Jean-étienne guettard, memoir and mineralogical map on the nature & situation of the lands which cross france and england, 1746, p. 363-392. Map accompanying this memoir, following p. 392: mineralogical map on the nature and situation of the lands crossing france and england; produced by philippe buache. Date: 1746.