134 JOURNAIv AND PROCEEDINGS 



Treutou. The remainder belongs to the Hudson River series. 

 Several years ago I was sent from the localit)- a parcel con- 

 taining many well-preserved minute members of the so-called 

 Chaetetes family, named and placed by themselves in a paper 

 t^a5^ 



Since Drs. Nicholson, Hinde and Foorde left Canada, I 

 have not heard of any Paleontologist here who takes much 

 interest in this class of Silurian organic remains. I have 

 heard that Professor Ulrich, in the States, who already has 

 contributed so extensively to our knowledge in other depart- 

 ments of Geological Science, makes a special study of things 

 not calculated to attract general observation. Assuredly our 

 lake shingles, hard and difl&cult to break up under the 

 hammer, maj^ reveal unknown species differing perhaps from 

 the far better preserved forms discovered evidently in softer 

 shales and under distinctly different conditions. Our 

 specimens seem more robust, and, as far as I can see, present 

 appearances not corresponding. Putting aside the few fossils 

 known to be common to the Trenton and Hudson River 

 series, such as " Plectambonites Sericeus," and one or two 

 others, we must admit the undisputed Trenton specimens 

 were obtained from shingle on the shore. 



I/ingula (Glossina) Trentonensis. 

 Conularia Trentonensis. 



Modiolopsis Cincinnatiensis. 



Ambonychia bellistriata. 



Asaphus platycephalus, two tail shields. 



While the writer believes the above list is incomplete 

 owing to the difficulty of extracting from shore shingle 

 specimens easih^ recognized, and which he considers were 

 originally derived from the Glacial Drift itself, he must not 

 forget to recall to the few members of the section yet remain- 

 ing, a well preserved " Cyclonema bilix " which our friend, 

 Mr. Bartlett, secured from the Beach there. True, the 

 Gasteropod in question has also been discovered in Hudson 

 River rocks, but from what its discoverer mentioned at the 



