30 



In an excellent and most valuable paper by Mr. Huxley, on the 

 " Anatomy of the Medusa," published in the last part of the ' Philoso- 

 phical Transactions,' and which has come into my hands since the 

 above observations were written, I am glad to find that the account 

 given of these marginal corpuscles, agrees very nearly if not exactly 

 with that contained in my paper, and as far as they go, with the prior 

 observations of Will on the same bodies. Mr. Huxley does not, 

 ' however, express any opinion, or even use any term, from which his 

 notion of the true nature of these bodies can be deduced. 



