of Nova Scotia, 



133 



D. Honeyman,* who has carefully collected the fossils of the Ari. 

 saig section, and from Mr. C. F. Hart of Wolfville. Prof. Hall 

 of Albany, has also kindly consented to apply his unrivalled 

 knowledge of the palaeozoic fauna of America to the determi- 

 nation of the fossils, and has enabled me to publish with this 

 paper, his descriptions of the more important new species. 



With these aids, though aware that the complete solution of 

 all the difl&culties of these deposits must await a systematic 

 and detailed survey, I hope to fix with certainty the geological 

 position of several important series of beds, and thus to afibrd 

 some data for comparison with the formations of similar age in 

 other countries. 



Fig. 1. — Explanation of the Map and Section. 



(1) Secondary Trap. 



(2) New Red Sandstone (Permian or Triassic.) 



(3) Carboniferous. 



(4) Devonian. 



(5) Middle and Upper Silurian. 



(6) Metamorphosed Lower Silurian. 



(7) Granite. 



The numbers refer to the section and to the accompanying shades of 

 the map. 



In my paper of 1849, 1 attempted to arrange the whole of these 

 infra-carboniferous rocks of Nova Scotia, in two great divisions : 

 (1.) The slate and quartzite formation of the Atlantic coast. 

 (2.) The slaty, calcareous, and ferruginous formation of the in- 

 land hills. The second of these groups will be found in the 

 sequel to include beds ranging from the Middle Silurian to 

 the lower Devonian. The first is certainly older, and probably of 

 Lower Silurian age. 



* See also a paper by Mr. Honeyman, in the Transactions of the N. S. 

 Lit. & Sci. Society. 



