142 stkirctuee a.-n-d classipicatoet positioif op madeeporaria. 



Discussion-. 



Mr. Etheridge thought, with the author, that it was impossible 

 to mistake Astrocoenia for Stylastrcea or a coral with coenenchyma 

 between the walls. It had been clearly shown that Mr. Tawney's 

 correlation of the Sutton Stone with the St. Cassian or the Muschel- 

 kalk was based on a wrong identification of certain fossils. Mr. 

 Etheridge had not seen any of the corals belonging to Mr. Tomes 

 and commented upon by Dr. Duncan. 



