I Figure 1. — Detail from Figure 1, Plate 12 



P Shows the very sharp contact between the smoky and coarse gravel. The apparent lack of strati- 

 fication, when viewed longitudinally to the esker, as here, is in striking contrast to the distinctness 

 of stratification in cross-section, as in figure 2, plate 12. 



Figure 2. 



-Contact of Gravel and fossiliferous Clay, Lockwood Gkavkl Pit, Watkrvillk, 

 Maine, Locality 5 



There is a well defined layer of fine gravel between two coarser ones. Note the basal conglom- 

 erate at the base of the clay, especiallv prominent where it crosses the fine gravel. The clay is abun- 

 dantly fossiliferous just to the left of the kodak case, l)arnacles being especially abundant even Into 

 the basal conglomerate. 



SECTIONS OF GRAVEL AND MARINE CLAY, WATERVILLE, MAINE, AND VICINITY 



