704 



MR ROBERTSON ON THE IRON MINES OF CARADOGH. 



Fig. 7. 



Fig. 8. 



Fi-?. 10. 



Fig. 11. 



Fig. 12. 



IE 



I 1 



IZ 6 



Inches. I 1 1 I i i I i i I i 



Fig. 13. 



Fig. 14. 



Scale. 



_L 



Feet. 



Fig. 1. 

 Fig. 9. 

 Fig. 2. 

 Fig. 3. 

 Fig. 4. 

 Fig. 9. 

 Fig. 5. 

 Fig. 6. 

 Figs. 7 



DESCRIPTION OF FIGURES. 



Ground-plan of forge. 

 A pair of double bellows. 

 Vertical section of the forge and chimney. 

 Side view of forge. 

 Side view of forge. 

 Side view of bellows. 

 End view of forge. 



Section of ore-liearth tlirough the centre. 

 , 8, 10, 11, 12, 13, 14, Tools employed in the manufacture. 



