402 



Proceedings of the Royal Physical Society. 



It is worthy of note that no Rhizosolenia was found here. 



List of Observing Stations. 



Station 1. Flogger Light, W. | IST. 25 miles. Depth, 125 

 fathoms. 

 Surface temperature, 53°*5 ; bottom temperature, 49°-3. 



Station 2. OssA Skekry, S.W. by S. J S. 7 miles. 



Una Bass, E,S.E. 5 miles. Depth, bQ> fathoms. 

 Surface temperature, 54° ; bottom temperature, 48°-6. 



Station 3. Ve Skerry, E, by K 12 miles. 



FouLA Island, S, J W, 7 miles. Depth, 73 fathoms. 

 Surface temperature, 52°-3 ; bottom temperature, 51°-8. 



Station 4. Sumburgh Head, E, f S. 8 miles. 



Fair Island, S,W. J S. 15 miles. Depth, 58 

 fathoms. 

 Surface temperature, 52°'5 ; bottom temperature, 48°, 



