On Microzoa, <&e. By C. D. Sherhom & F. Chapman. 763 



In addition to the above list we find in Professor Prestwick's 

 paper on " The Thickness of the London Clay," Q.J.G.S., x. p. 417, 

 mention made of Robulina from Copenhagen Fields and Haver- 

 stock Hill, and Rosalina from Highgate. It is most probable 

 that these forms have been included in Messrs. Jones and Parker's 

 lists, under the genera Cristellaria, Planorbulina, &c. 



