main difference existing between these two species lies principally in 

 the preservation, S. Canadensis B, occurring as hollow tubes or burrows, 

 whilst Hall's species is found as casts of the interior of the burrow or 

 Iiole. In comparing the form S. linearis, Hall with the species re- 

 corded from the Potsdam formation of L'anse au Loup, Que. (See Pol. 

 Foss. Billings, Vol. 1, P. 2), they are found to be exactly similar and 

 cannot be differentiated. 



In conclusion, the leaders "JKg happy to state that there is a vast 

 field of hibouv before this Branch of the Chxb, and it is there- 

 fore encouraging to note the good work which many members of the 

 Club have performed. It is hojied that the time is not far distant 

 when a good topographical map will exist upon which it will be pos- 

 sible to lay down the geological features of the district in a more or 

 less detailed manner. What is more important at present is to obtain 

 from the excavations being made in all parts of the city the sactions 

 which such excavations afford and collect all the fossil evidence possible, 

 whether in the later or earlier formations of this locality, as both are 

 very fossiliferous and problems of vast import relating to the geology 

 of other parts of Canada, problems as yet unsolved, will be materially 

 helped thereby. 



To this end, each member can contribute hfs or her share towards 

 the gathering of material wherewith to frame at some future time a 

 systematic and comprehensive resume of the geology of Ottawa. In 

 doing so, the members will not only con'yribute to this, but will materi- 

 ally assist the Council and help the leaders in furthering the work of 

 the Club. 



HENRY M. AMI, 



IMT, 1 

 ^TEK, / 

 Ottawa, January 2.5th, 1887. 



'Y ~\f^ w" QOW"^"'^^^ / Lieuucvs, 



