242 



SYNAPT.E. 



tion of the anatomy of the Sea-Cucumbers, more especially 

 with a view to a comparison of the structure of the Mol- 

 luscan with the Annelidous forms of Holothuriadse. The 

 elaborate dissections of Chiagi require to be repeated 

 before we can put implicit confidence in their accuracy. 



There is a point in the economy of these animals, and 

 also of the Sea-Urchins, to which I would direct attention. 

 In some specimens, not in all, nor in all the examples 

 of any one species, we find red globules, variable as to 

 number and large as to size, floating in the fluid of the 

 aquiferous system. 



The vignette is a view of St. Andrew's Castle and Bay, 

 a rich gleaning ground to the naturalist. 



