JOURNAL AND PROCEEDINGS. 5 1 



Well preserved organic remains were discovered in some large 

 flags, colored brownish purple, probably Trenton. This band is very 

 fossiliferous, contains a very fine Cyrtodonto, resembling C. Hindi 

 (Billings), which I failed to extract. The beak and part of the 

 hinge line were concealed, so one could only judge from its general 

 appearance. It would be well to ascertain the occurrence of the 

 bed in situ, for I think it holds two or more fossils which appear to 

 be " new specie?," in addition to many others rare in the drift here, 



GRIMSBY, NIAGARA BEDS AND UPPER CLINTONS. 



Before the writer refers to this locality, it may be necessary to 

 state that he understands in some quarters remarks have been 

 made regarding the possibility of a mistake having occurred 

 regarding the horizon of the Fucoids in the now abandoned Gibson 

 Quarries. There cannot be the slightest doubt in this matter, how- 

 ever unlike in mineral composition. In the Upper Clinton beds of 

 Hamilton and Grimsby the strata are identical as regards the posi- 

 tion of the rocks. The white and mottled sandstones at the latter 

 occupy similar places to the Hamilton Upper Green and I|on 

 Bands. It is also erroneous to suppose the Lower Clintons are not 

 to be found at Grimsby. They are merely partly concealed measures 

 there. The writer noted their occurrence in the ravine at several 

 places, and also the Medina freestone and the capping Grey Band, 

 from which he extracted the Gasteropod now in the Geological Sur- 

 vey Office, Ottawa. " It is probably a species of Halopea" remarks 

 Prof. Whiteaves. 



Very few fossiliferous slabs were displaced since last year, but 

 many well preserved Fucoids and Niagara Shale Polyzoa were 

 obtained by searching in the debris of the old workings. In a 

 Pentamerus layer there, the writer noticed, on splitting it, quite a 

 number of casts, which he considered represented a young stage of 

 growth of the Pentamerus oblongus (Sowerby), if they did not 

 represent dwarfed degenerate descendants of that Brachiopod. I 

 have since discovered the shell has been figured and described as a 

 variety from the Niagaras, Iowa, U. S. A., as Pentamerus subrectus. 



In a letter received from the late Dr. James Hall, just a little 

 before his death, after his return from " the Urals," in Russia, in 

 acknowledging the receipt of a communication relative to finding 



