110 LIFE OF PROFESSOR HUXLEY CHAP. VI 



1. On the Auditory Organs of the Crustacea. 

 Published in the Annals of Natural History. 



2. On the Anatomy of the genus Tethea, Published 

 in the Annals of Natural History. 



3. Report upon the Development of the Echinoderms. 

 To appear in the Annals for July. 



4. On the Anatomy and Physiology of the Salpae, 

 with four plates. Read at the Royal Society, and to be 

 published in the next part of the Philosophical Trans- 

 actions. 



5. On two Genera of Ascidians, Doliolum and 

 Appendicularia, with one plate. Read at the Royal 

 Society, and to be published in the next part of the 

 Philosophical Transactions. 



6. On some peculiarities in the Circulation of the 

 Mollusca. Sent to M. Milne-Edwards, at his request, to 

 be published in the Annaks des Sciences. 



7. On the Generative Organs of the Physophoridae and 

 Diphydse. Sent to Prof. Muller of Berlin for publication 

 in his Archiv. 



By the end of the year he had four more to 

 report : 1. On the Hydrostatic Acalephse ; 2. On 

 the genus Sagitta, both published in the Report of 

 the British Association for 1851 ; 3. On Lacinularia 

 Socialis, a contribution to the anatomy and physi- 

 ology of the Rotifera, in the Transactions of the 

 Microscopical Society; 4. On Thalassicolla, a new 

 zoophyte, in the Annals of Natural History. Next 

 year he read before the British Association a paper 

 entitled "Researches into the Structure of the 

 Ascidians," and a very important one on the Mor- 

 phology of the Cephalous Mollusca, afterwards 

 published in the Philosophical Transactions. In addi- 



