Account of the rocks near dundee. 141 



S. 



Sandstone. 



Sp.5. Sp. 12. 



Sp 6. Sp. 7. 



The specimen No. 5. is greenstone ; its frag- 

 ments sound like clinkstone. Specimen 6., is a 

 greenstone abounding in felspar, in a state of de- 

 composition. Specimen 7m is a soft claystone- 

 porphyry. Specimen 12., is a claystone-porphyry, 

 with minute grains of sand. 



Opposite the Crescent, the rocks disappear, and 

 the shore becomes level. Here, however, a rock 

 of greenstone appears rising among the rocks of 

 the shore. It abounds with hornblende, and is in 

 some places amygdaloidal. Specimen 8. is from it. 



Passing this mass of greenstone, the relations of 

 which I could not ascertain, a bed of claystone, spe- 

 cimen 11., equally imperfectly exposed, makes its 

 appearance on the shore. After passing this 

 claystone, rocks of greenstone now form the shore, 

 and continue without interruption to the town 

 of Dundee. Specimen 10., is from this bed of 

 greenstone. In the neighbourhood of the town, 

 the greenstone seems to pass into clinkstone, — a 



* The numbers refer to the specimens presented to the Wer^ 

 xieriun Society, and deposited in their coliection. 



