Correspondence. 473 



Agnosfus 1, Bathyums 4, Cheirurus 2, Amphion 2. From a third 

 out-crop, which is still farther southward, and supposed to be 

 another repetition of the same band (which we shall call A^), we 

 have Orthis 1, Camerella 1, Asaphus (^A. Illcenoides) 1, Bathyu- 

 rws 1. Tracing A^ or A^ round the extremity of a synclinal, and 

 finding occasional indications of the fossils of A^ and A^, we 

 arrive at a position on the south side of the synclinal. We shall 

 call the position P. Here the band A^ or A^ ends, but a bed 

 of sandstone a little above it is traceable over an anticlinal to a 

 junction with a conglomerate band lower than A^ or A^, shew- 

 ing that A2 or A^ must merge into it. Call this A^. In this 

 we have Asaphus (J.. Illcenoides) 1, Menocephalus (J/, glohosus) 

 1. These two species occur in the same fragment of rock. Of 

 all these fossils, 1 Orthis is common to A^, A^ and A"* ; 1 Leptcena, 

 1 Camerella, 1 Lingula, 1 Aynosfus, and 1 Bathyums, are com- 

 mon to A2 and A^ ; 1 Asaphus is common to A^ and A^. 



The dip at P is to the south-eastward, and therefore an inverted 

 dip. North-west of this, and therefore above it, at such a dis- 

 tance as would give a thickness of between 200 or 300 feet, we 

 have a band of shale with nodules of limestone, the nodules made 

 Tip of other rounded masses in a matrix holding fossils, many of 

 them silicified. From a few of these compound nodules we 

 have obtained Orthis 11, Leptcena 1 ; this band we shall call B*. 

 A band like this occurs about half a mile or more to the south- 

 westward. It may be a higher band, or it may be the same 

 band, but we shall call it B^ . From this we obtain Crinoidcea 

 (columns) 3, Orthis 1, Camerella 1, Nautilus 1, Orthoceras 1, 

 Leper ditia 1, Trilohites (2 genera undetermined) 2. In another 

 position to the south-east, on the south-east of the same anticlinal 

 previously mentioned, we meet with a conglomerate band supposed 

 to be the same as B^ ; but, in case it should be different, we 

 shall call it B^. Here we have Orthis 3, Fleurotomaria 2, 

 MuTchisonia 1, Ophileta 1, Helicotoma 1, Nautilus 1, 3faclurea 

 1, Orthoceras 3 or 4, Cyrtoceras 1, Bathyums 1, lUwnus 2, 

 Asaphus 1. Of all these fossils. 1 Orthis and 1 Camerella are 

 common to B' and B^; the same Orthis and Camerella with 1 

 Leptcena are common to B^, A*, A' and A^. 



To the north of all these exposures, and on the north-west side of 



a synclinal running parallel with the synclinal already mentioned, 



fossils have been obtained in a cliff of about 100 feet, composed 



of limestone conglomerate, thin bedded limestones and shales. 



Can. Nat. 6 No. 6,Yol. V. 



