TRANSACTIONS 



OF THE 



Jloba c0tian Institute of 



SESSION OF 1894-95. 



I. NOTES ON CONCRETIONS FOUND IN CANADIAN ROCKS. BY 

 T. C. WESTON, F. G. S. A., LATE OF THE GEOLOGICAL 

 SURVEY OF CANADA. 



(Read 14th January, 1895). 



Every student of geology is familiar with concretionary 

 matter. I purpose in this short paper giving descriptions and 

 illustrations of a few of the more interesting forms. 



The resemblance of many concretions found at various 

 horizons of our Canadian rocks, to some of the Monticuliporidse 

 and Stromatopora of the Trenton, Chazy and other formations 

 has often caused them to be mistaken for these fossils. Notes 

 by the writer in Trans, of the Nova Scotian Inst. of Science. 

 Ser. 2, Vol. 1, Fig. 1, reproduced supposed Oldhamia of the 

 Huronian Rocks of Newfoundland. 



FIG. i. 



(1) 



