BY W. H. CLEMES, B.A., B.SC. 21 



hollowed in the centre, forming a large shallow lagoon. 

 The genei'al appearance would lead one to suppose that- 

 it is the result of siil>->idfucf' rather than the result of the 

 accumulation of drifting sand, though the rapid disintegra- 

 tion would account for abundance of material. An inter- 

 esting field of study would be the formUtion of the tied- 

 islands and isthmuses of S.E. Tasmania. The amount of 

 evidence here is very little, and no definite conclusions 

 could be formed without further examination. There is 

 no doubt that the peninsula was separated from Schouten 

 Main just as at present Schouten Island is separated from 

 the peninsula, and also that the different character of the 

 rocks on the north and south side of the bay would lead 

 to the conclusion that they represent Iwo quite distinct 

 intratelluric intrusions, which were, however, approxi- 

 mately contemporaneous, but further investigation must 

 be left to a subsequent visit. In conclusion, I must ex- 

 press my indebtedness to ]\Ir. Twelvetrees. who gave mo 

 valuable assistance in checking the constituents of the 

 rocks found, and especially in determining the composition 

 of the diorite. 



