INDEX. 



461 



Cader Idris, height of 



Calamine, found frequently in the limestone near Bristol 

 Campsie, Mr. Mackintosh on the aluminous strata, at 

 Carlisle, plain of, consists principally of red sandstone . 

 Carnelians, account of the manner in which they are procured 



in Cambay ........ 



Chalcedony, vegetables in 



Chalk Flints. See Flints. 



Chert, lias changed into, in Sky ..... 



Cheviot Hills, composed of porphyry .... 



, its junction with the lead mine measures not visible 



, bog iron ore and haematite found in 



Chlorite, frequent in the trap of Kinnoul 



, crystals of, in quartz ..... 



Chlorite Schist, with felspar and quartz, rock composed of these 



substances interlaminated together, passing out of gneiss 



at Sleat, in Sky . . . . . 



Clarke, Edward Daniel, LL.D. Analysis of one hundred parts 



of a dark bituminous limestone, from the parish of White 



ford, in Flintshire, North Wales .... 

 Clay ironstone, formerly collected by the Carron Company on 



Holy Island 



> found in the shale of the lead mine measures 



sometimes forming septaria 



Coak, Mr. Taylor on some appearances in 



Coal, estimate of the quantity annually raised in the Northum 



berland coal-field ...... 



found in most parts of the lead mine districts 



quantity of, shipped at Newcastle and Sunderland 



* quantity shipped from Hartley and Blyth collieries 



— < — quantity imported into London 



dug near Melmerby and Ousby 



in Sky, appearances of ..... 



altered by contact with basaltic dykes. See Dykes, 



Coal measures of Northumberland and Durham described 

 some of the lower beds of resemble the lead 



mine measures 

 Vol. iv. 



PACK 



435 

 200 

 445 

 105 



447 

 398 



176 



93 



93 



95 



223 



398 



159 



430 



67 



67 



ib. 



448 



56 

 67 

 99 

 100 

 100 

 113 

 178 



10 



11 



3 N 



