FROM NORTH AMERICA, WALES, AND IRELAND. 31 



Mr. J. S. Crawford said thnf-, he had collected many American 

 specimens, which he would , be happy to lend to the Author, or to 

 place in the Society's Museum. 



Dr. HiNDE said that although the Entomostraca of the Hamilton 

 group closely resembled those from the Silurian, the fauna of tliis 

 group generally was unmistakably Middle Devonian. 



The xiuTHOR, in reply, assented to Dr. Woodward's remarks 

 concerning the upward passage of Lower-Silurian forms to recent 

 times, and said that he would examine Mr. Crawford's specimens 

 with pleasure. 



