THR HK1STOI, < O AI.KIELD. 



(n 



investigating this matter further, a section of a quarry was taken, and 

 each bed analysed. This is shown in section No. 2. 



No. 2. — Section of a Pknnavt Quarry. 



Glancing at the section, we observe that beds No. 1 and No. 4 are 

 the ones with which carbonaceous matter is visibly associated. 



In bed No. 1 it is in stratified beds of about 1£ inches thick, which 

 divide the stone into other beds of about the same thickness. 



If we compare this bed with No. 5 we find that, with the exception 

 of thickness, the physical conditions are very similar, hut. with this 



