568 



Mr FISHER, ON THE PURBECK STRATA OF DORSETSHIRE. 



Since the above paper was read, Mr Westwood's most interesting paper on the Insects of 

 the Dorsetshire Purbecks has appeared in the Quarterly Journal of the Geological Society, 

 Vol. X. p. 378. The collection, from which the figures were drawn, does not appear to have 

 been quite so good an one as that which is in the Woodwardian Museum. Some of the 

 species figured we have not, but there are one or two of interest which we possess that differ 

 from any described, especially a fine wing of Myrmeleon (ant lion), a wing of Termes (white 

 ant), certain large elytra, apparently of the same species as a specimen nearly two inches long 

 which I deposited in the British Museum, and which is now in one of the table-cases there. 

 There are also some orthopterous wing-cases, which are unlike anything figured in 

 Mr Westwood's paper. I believe some of these remains must have belonged to insects of a 

 more tropical type than, with the exception of one or two, Mr Westwood allows to the climate 

 of the Purbeck country. 



SWANAGE BAY. 



The above section is taken from east to west on the south side of Swanage bay. 



