RICHNESS OP THE IKON-ORE ON THE SOURIS. 



323 



cent, from the specimen analyzed by Professor Croft, and 

 I am convinced that a little care in selection would 

 establish the fact that the iron-ores of the Souris would 

 take a very high rank in point of richness in metal 

 among the most celebrated English and Scotch clay iron- 

 stone ores. 



Subjoined is Professor Croft's analysis : — 

 Clay iron-stone from the Little Souris. 



FeO, C0 2 82-720 



CaO, C0 3 6-705 



MgO, C0 3 trace 



Insoluble residue . . . . 8-181 



Phosphoric acid and loss . . . 2-394 



100-000 



The following specimens are from Formation No. 4 of 

 the vertical section in Rupert's Land. 



Curious Spiral Fossil from the Two Creeks. 



[Several impressions, apparently of the stems of marine 

 plants, occur in the specimens from the locality on the 

 Assinniboine, near the mouth of the Two Creeks. 



Along with the above there are also specimens of a 

 very curious spiral body, differing from any fossil I ever 

 before met with. It is a long, slender, slightly flattened, 

 or sub-cylindrical body, measuring in every part of its 

 length about 0*18 inch in its greatest diameter, and very 

 regularly coiled into a spiral form, the turns being widely 



