312 



1892. H. M. Ami, Catalogue of the Silurian Fossils from 



Arisaig, Nova Scotia, Nova Scotian Inst. Nat. 



Sci., n. ser., vol. II, pp. 185-192. 

 1909. W. H. Twenhofel, The Silurian Section at Arisaig, 



Nova Scotia, with a note on Correlation by Charles 



Schuchert, Am. Jour. Sci. 4th ser., vol. XXVIII, 



pp. 143-169- 

 1912. M. Y. Williams, Geology of Arisaig- Antigonish 



District, Nova Scotia, Am. Jour. Sci., 4th. ser., 



vol. XXXIV, pp. 244-250. 



ANNOTATED GUIDE. 



Antigonish to Maccan junction. 

 (G. A. Young.) 



Miles and 

 Kilometres. 



o m. Antigonish — Alt. 20 ft. (6 m.). From 



o km. Antigonish westward, the Intercolonial railway 



for some miles follows the northern edge of a 

 low-lying area occupied by strata of the Carbon- 

 iferous Limestone series (Windsor series?), 

 close to the bordering upland of older strata 

 that stretches northward to the coast. For a 

 short distance the railway lies on the north 

 side of Rights river along which white cliffs of 

 gypsum are visible, the strata dipping to the 

 south at an angle of 40°. A short distance to 

 the northeast rise high hills of deformed strata 

 presumably of Ordovician age and intruded by 

 basic igneous masses. At a distance of i^ miles 

 (2-4 km.) from Antigonish, the railway crosses 

 Rights river and for a very short interval, 

 enters an area occupied by the Carboniferous 

 Conglomerate series; tilted, red sandstones and 

 conglomerates of this series are exposed along 

 the river. The strata of the Conglomerate series 

 occupy an area several miles wide that extends 

 northwards along a depressed area across the 

 upland. To the eastward the strata of the Lime- 

 stone series abut directly against the bounding 

 Ordovician, but to the westward a narrow band 

 of the Conglomerate series is interposed. 



