MEMOIRS 



OF THE 



LITERARY AND PHILOSOPHICAL SOCIETY 



MANCHESTER. 



I.— On some of the Microscopical Objects found 

 in the Mud of the Levant, and other Deposits; 

 with Remarks on the mode of formation of 

 Calcareous and Infusorial Siliceous Rocks. 

 By W. C. Williamson, Esq. 



Communicated by J. P. Joule, Esq. (Read November 4, 1845.)* 



Having received from my two friends, Mr. 

 Wm. Reckitt, of Boston, and Mr. Sidebotham, 

 of Manchester, specimens of the friable calca- 

 reous deposit which is now accumulating under 

 the waters of the Levant.f I have resolved, after a 



* Some additional matter has been incorporated since the 



Paper was read. 



t The term Levant, "is applied not only to the shores, 

 but the seas, over vchich the sun rises to the morning-ward of 

 Malta." The Crescent and the Cross, by Elias Warburton, 

 Esq. Vol. ii. p. 1. 

 B 



