Page:Field Notes of Junius Henderson, Notebook 1.djvu/73

 ation southward and eastward, the loose pebbles being residue from the decomposition of the conglomerate and the washing away of the softer and finer portions. The conglomerate is not generally very well set, crumbling readily under the hammer, with a disagreeable odor somewhat resembling dog fennel, very irritating to the nostrils. It is about 60 ft. in thickness overlying the soft calcareous mud which characterizes the formation in general, the latter, with some harder bands, extending as deeply as erosion has reached- certainly not less than 100 ft. The conglomerate is strongly cross bedded in places, and some of the pebbles are 6 or 8 inches in diameter, though it is mostly coarse sand and gravel. Am unable to correlate this bed with any of the conglomerates in the bluff proper, though it may represent the cap of the bluffs, which is, generally speaking, thoroughly disintegrated