138 REMARKS, &C. 



for building, from the peculiar facility with which it is quar- 

 ried ; the stratification being horizontal, and the cross rents 

 perpendicular, and so regular, the quarry presents a very 

 symmetrical appearance. 

 54, 55. Granite, coarse-grained, near Bodmin. 



S6. Fine-grained Killas, near Launcestown. 



ST. About seven miles from Launcestown, on the road to Oak- 

 hampton, I found a quarry containing schistose and amor- 

 phous Killas interstratified, the last of which I believe to be 

 as perfect Grauwacke as any in the district of Lammer- 

 muir. 



«6. Greenstone, Hatherleigh. 



59. Variety of Trap from Cleave. 

 60, 61. Killas from Ilfracombe, alluded to in page 119. 



Specimens quoted^ but not from the same country. 



62,63. Fine-grained Grauwacke, from Peeblesshire, in all respects 

 similar to the Killas of Cornwall. Note, p. 120. 



64, 65. Shells in Killas, from Coniston. Note, p> 1 25. 

 66, 67. Same from Fermoy, county of Cork, p. 125. 



65, 69. Gneiss from Coul, p. 129. 



70. Transition Limestone from Rae Quarry, containing shells, 

 p. 113. 



IV. 



