26l 



typical of the whole formation except that conglomeratic 

 beds are not present. The contact of the Millstone Grit 

 with the Coal Measures is a conformable one and is 

 excellently shown. The somewhat arbitrarily chosen 

 boundary between the two formations is indicated by a 

 rather abrupt change from the light colour of the sandy 

 measures of the Millstone Grit to the much darker, shaly 

 strata of the Coal Measures. An upright tree trunk, 

 several feet in height is shown (in 1912) in cross section a 

 short distance beyond the contact. 



Immediately north of the piers at Indian Cove, and in the 

 shales overlying the Indian Cove coal seam, abundant 



Coal measures, Sydney, N.S. Looking north from "Main seam" outcrop. 



fern remains may be found. Long Stigmaria roots are 

 found in these shales with rootlets radiating in all directions 

 in position as they grew. In the coarse sandstones 

 overlying this shale bed, are abundant upright Calami te 

 stalks up to two feet in length. Continuing up the shore, a 

 monotonous succession of sandstones, red shales, grey shales, 

 coals, etc., is traversed. The red shales are mud-cracked; the 

 grey shales commonly carry rootlets; the black shales 

 associated with the coals usually show abundant ostracods 

 and Anthracomya. An occasional thin bed of limestone is 

 exposed, one bed of which is known to carry fragmental 

 fish remains in abundance. 



