No. IV, APPENDIX. 389 



Byam Martin's Island, were found in abundance by 

 Sherard Osborn, Esq., Commander of H.M.S. 'Pioneer,' 

 in whose journal the following note respecting them 

 may be found : — ■ 



" The above collection was delivered over to Captain 

 Sir Edward Belcher, C.B., by Commander Richards, at 

 2 P.M., on .7th Nov. 1853."* 



It is to be hoped that they may soon be made avail- 

 able for the elucidation of the geology of this most 

 interesting portion of the Arctic discoveries. 



No. XV. BATHURST ISLAND, Bedford Bay (Lat. 75° N. ; Long. 



95° 50' W.). 

 lu this locality abundance of vesicular scoriaceous trap rocks 

 were found by Captain M'Clintock ; they appear to me to be the 

 representatives of the volcanic rocks foimd everywhere at the 

 commencement of the carboniferous period. 



No. XVI. COENWALLIS ISLAND, M'Dougall Bay. 



1. Syringopora geniculata. Journ. E. D. S., Vol. I. PI. XI. Fig. 2. 



2. Cardiola Salteri. Journ. R. D. S., Vol. I. PL VII. Fig. 5. 



The Syringopore found at Cornwallis Island appears 

 to be identical with the variety of the Irish carbonife- 

 rous *S'. geniculata, in which the corallites are at a distance 

 from each other somewhat exceeding their diameters, 

 and in which the connecting tubes are about two dia- 

 meters apart. 



A question of very considerable geological interest is 

 raised by the occurrence together of corals, in the same 

 locality, of silurian and carboniferous forms. 



I entertain no doubt of their being in situ, and occur- 

 ring in the same beds, for the following reasons : — 



1st. The Syringopores of Griffith's Island were found 

 at an elevation of 400 feet above the sea, and, there- 

 fore, could not be brought by drifting ice. 



2nd. The specimens were apparently of the same 

 texture and composition as the native rock, whenever 

 the latter was visible from under the snow. 



Vide Arctic Expeditious, 1854-55, p. 254. 



