are from 52 to 60 feet thick. The section is from N.W. to S.E. ; 

 and the general dip is S.E. at a small angle. Organic remains abound 

 throughout the whole series of beds, and are readily obtained even 

 from the limestones. The principal are many beautiful corallines, 

 some very rare; many species of productus, spirifer, terebratula, 

 orthoceras, bellerophon, goniatites, &c. The shales contain large 

 mityli, nuculae, &c. The remarkable effects of igneous action in this 

 glen will be noticed farther on. 



(a) Shale with ironstone layers; (b) shale with encrinites; (c) thin bedded yellow 

 sandstone ; (d ef) thick beds of calcareous shale with limestone bands ; (g) main lime- 

 stone; (h~) shale with nodular limestone; (i) coal bed; (_/) shale; (k) shale with marine 

 shells and corah; (I) coralline limestone; (m) shale with ironstone bands; (n) thick 

 bedded yellow sandstone ; (o) thick shale beds with ironstone bands ; (p) boulder clay 

 seep. 13. 



21. We subjoin several journals of borings in these lower marine 

 beds, in order to show the general correspondence at remote points, as 

 well as the local variations of the deposits. No. 1 gives the strata 

 on the South hill, bounding Campsie valley in that direction ; No. 

 2 the beds lying in the valley, to be regarded as a continuation 

 of No. 1. They are not presented in any natural section, and seem 

 to lie between the Ballagan beds and the strata of No. 1 ; the sand- 

 stone on the floor of the valley forms the passage from the one series 

 to the other. A portion of the beds in No. 1 is well seen in Craigen 

 glen, opening southwards towards the village of Torrance ; and these 

 abound in organic remains, among which, in addition to the genera 

 above mentioned, are lingulse, and many fish teeth and scales. The 

 boring No. 3 is taken from a pit sunk at the E. end of the South 

 hill, and on the S.E. side of a great greenstone dyke which crosses 

 the district from N.E. to S.W., and throws down the beds on the 

 side of Campsie valley, to a considerable depth. They are higher in 

 the series than any in the Campsie district. In the language of the 

 miners, "blaes" denotes all pure shales ; " fakes," laminated sandy 

 shales ; " kingle," hard siliceous bands ; " doggar" beds are bands of 

 shale with nodular clay ironstone. 



