HAUGHTON, GEOLOGY OF PARRY ISLANDS, ETC. 549 



Dolomite from Boothia Felix, 



Per cent. Atoms. 

 Argil - - - - 2-22 



Peroxide of iron and alumina - - 0*29 



Carbonate of lime - - - 54*92 110 



Carbonate of magnesia - » 42 * 57 97 



100-00 



Carbonate of lime : carbonate of magnesia :: 110 : 97=1 '134 : 1. 



8. Fury Point, Lat. 72° 50' N., Long. 92° W. 



Silurian Limestone ; grey, earthy. 



Cromus arcticus, Hgt. J. R. D. S., i. t. 6, f. 1-5. 



Maclurea arctica, Hgt. J. R. D. S., iii. t. 3, f. 1, 2. 



Stromatopora concentrica, Goldf. 



Cyathophyllum helianthoides (Goldf.). 



Petraia bina (Lonsd.). 



Favosites Gotlandica, Goldf. {F, Niagarensis, Hall). 



Cyathophyllum csespitosum, Goldf. 



Favistella Franklini, Salter. 



Strephodes Austini, Salter. Sutherland's Journ., t. 6, f. 6. 



Atrypa phoca, Salter. 



Chsetetes lycoperdon, Hall. J. R. D. S., iii. pi. 4, f. 4. 



9. Prince-of- Wales Land, Lat. 72° 38' N., Long. 97° 15' W. 



Silurian Limestone, grey and earthy ; near the junction 



with the red arenaceous limestone. 

 Favosites Gotlandica, Goldf. {F, Niagareiisis, Hall ; 



Chcetetes arcticus, J. R. D. S., i. t. 11, f. 3, 4.) 

 Stromatopora concentrica, Goldf. 

 Cyathophyllum, sp. 



The Dolomite found by Capt. Young on the extreme west of 

 Prince-of- Wales Land has the following composition : — 



Per cent. Atoms. 

 Argil- - - - - 6-93 



Peroxide of iron and alumina - * 65 



Carbonate of lime - - - 46 ' 80 94 



Carbonate of magnesia - - 45*62 108 



100-00 



Carbonate of lime : carbonate of magnesia : : 94 : 108=0*870 : 1. 



10. West Coast of King- William's Island. 



Earthy limestone, grey ; and cream-coloured compact 



dolomite. 

 Loxonema Rossi. J. R. D. S., i. t. 5, f. 6, 8-11 ; iii. t. 4, 



f. 6. 

 Catenipora escharoides, var. agglomerata, Hall. J. R. D. S., 



iii. t. 4, f. 5. Dolomite. 



