REPORT OF THE DIRECTOR I914 1 53 



the normal Oriskany sand fauna, merging beneath into limestone 

 layers which seem to carry a uniform calcareous content through 

 the heart of the fold and, thus, to lack the sandy element which 

 follows in the west flank of the peak. This calcareous sedimenta- 

 tion may be regarded as indicated in the lower beds of the white 

 sand of the west slope where a still lower term is shown in the 

 corrugated vertical and thin-bedded sandstones. For the present 

 the Pic d'Aurore series is constituted of the terms shown in this 

 double fold. 



The line of contact between the lower sandstone of this series 

 and the underlying disturbed Siluric is an unconformity and prob- 

 ably the term represented by the Barre limestone shown at the east 

 end of the section is here missing. The Siluric limestones are 

 displayed in this section at the base of the west flank of the Pic 

 and in the upper part of the next cliff face, and also along the walls 

 of the coulee which runs from the shore here back to the mountain 

 above. 



Below these much disturbed and blue-gray limestones are gray, 

 thin-bedded limestones, passing into a dark shale with a very 

 characteristic Lorraine fauna. 



