32 Canadian Record of Science. 



15. From New London, Prince Edward Island. One of 

 the reddish " conglomerate limestones," occurring in many 

 localities on the Island. Composition : 



Calcium carbonate 59 . 52 



Magnesium " 1.04 



Alumina aud ferric oxide 2.47 



Insoluble matter 35.52 



98.55 

 16. From Kildare, Prince Edward Island. A red con- 

 glomerate magnesian limestone, occurring in association 

 with the red sandstones and shales of Kildare. Analysis gave : 



Calcium carbonate 44.00 



Magnesium " * 22.93 



Alumina and ferric oxide 3. 73 



Insoluble matter 26.59 



97.25 

 Triassic. 



17. Peace Eiver, British Columbia. *Blackish-grey car- 

 bonaceous limestone, containing fragments of Monotis sub- 

 circularis. A specimen collected by Dr. Selwyn was found 

 to have a specific gravity of 2.67, and gave on analysis : 



Calcium carbonate ». 48.47 



Magnesium " 5 . 85 



Ferrous •' 0.85 



Insoluble matter 42 . 26 



Carbonaceous matter, water and loss 2.57 



luO.OO 

 18. Peace River. Another specimen from the same region 

 as the last was lighter in colour, being less carbonaceous, but 

 also very impure. It was collected by Dr. Selwyn and its 

 analysis gave : 



Calcium carbonate 38 .98 



Magnesium " 7.59 



Ferrous " 1.14 



Insoluble matter 51 . 18 



Carbonaceous matter, water and loss 1.16 



100.00 

 * See Rept. Geol. Surrey of Canada 1875-76 p. 75, and 1876-77 p. 485. 

 Note.— In numbers 5, 14, 15, 16, the iron in the soluble portion of the rock 

 may have been present partly or entirely as carbonate. The " insoluble matter " 

 of the analysis is the portion that did not dissolve in boiling for about half an 

 hour in hydrochloric acid. 



