Note 73 — Chapter XV

I tried in vain to get along the ridge of the Bouchard to this junction, the edge of the precipice between a and b (Plate 33) being too broken; but the point corresponds so closely to that of the junction of the gneiss and protogine on the Charmoz ridge, that, adding the evidence of the distant contour, I have no doubt as to the general relations of the rocks.