194 SEA-TTKCHINS. 



excellent instance testifying in favour ot the doctrine of 

 evolution. Tliis Ijrief sketch may possihly give additional 

 pleasure to a sea-side sojourn, by inducing some of our 

 readers to direct their attention, first of all, to the recent 

 sea-urchins, after which the}'' will scarcely fail to exteml 

 their investigations to the fossil sjiecies so abundantly 

 distributed through our rocks ; and, we will venture to add, 

 that if thev do so their interest cannot fail to lie aroiised. 



