TREATISE 



ON 



PRIMARY GEOLOGY; 



BEING 



AN EXAMINATION, 

 BOTH PRACTICAL AND THEORETICAL, 



OF 



THE OLDER FORMATIONS. 



BY 



HENRY S. BOASE, M.D. 



f 



SECRETARY OF THE ROYAL GEOLOGICAL SOCIETY OF CORNWALL, 

 &C. &C. 



LONDON: 



PRINTED FOR 



LONGMAN, REES, ORME, BROWN, GREEN, & LONGMAN, 



PATERNOSTER-ROW. 

 1834. 



