870 ON THE GLACIAL PHENOMENA OE THE OTJTER HEBRIDES. 



said that there was evidence of change in the photospheres of other 

 stars, so that we might infer the occurrence of similar changes in 

 that of the sun. 



Prof. Boyd Dawkins objected to Mr. Croll's theory of the recur- 

 rence of glacial periods that the palseontological evidence was all the 

 other way. 



Prof. Seelet pointed out that the level of the land in the west of 

 Scotland might have been different from what it is now, and 

 Boulder-clay &c. might have been removed, so that the objection 

 from the absence of rock-fragments was perhaps not insuperable. 



