PROCEEDINGS 



OP 



THE ROYAL SOCIETY. 



1843-44. No. 59. 



December 7, 184^3. 

 The MARQUIS OF NORTHAMPTON, President, in the Chair. 



The Minutes of the last Ordinary Meeting, and of the Anniver- 

 sary Meeting were read. 



Charles Hood, Esq., F.R.A.S., of Earl Street, Blackfriars, and 

 Francis Rawdon Moira Crozier, Captain R.N., were put to the ballot, 

 and respectively elected Fellows. 



A paper was read, entitled, " On a sudden rise and fall of the 

 Sea in the Dock-yard Creek, Malta, on the 21st and 25th June, 

 1843." By S. Napier, Esq., Master- Attendant. Communicated by 

 the Lords Commissioners of the Admiralty. 



At 6 o'clock, A.M. on the 21st of June, the water was found to be 

 6 inches above the average height, and continued so till Gf, when it 

 rose to 18 inches, and in a few minutes sank to 3 feet 6 inches below 

 the average ; which oscillations continued till 8j a.m., when it re- 

 sumed its usual level. On the 25th5 a rise to the extent of 2 feet 6 

 inches above, followed by a fall of 3 feet below, the average, was 

 observed ; these alternations in height recurring four several times 

 on that day. The author was unable to assign any particular cause 

 for these extraordinary agitations of the sea. 



December 14, 1843. 

 The IMARQUIS OF NORTHAMPTON, President, in the Chair. 



A paper v/as read, entitled, " Researches into the Structure and 

 Development of a newly-discovered Parasitic Animalcule of the 

 Human Skin, the Entozoon folliculorum.'' By Erasmus Wilson, 

 Esq., Lecturer on Anatomy and Physiology in the Middlesex Hos- 

 pital. Communicated by R. B. Todd, M.D., F.R.S. 



The animalcules which are the subject of this paper were disco- 

 vered above a year ago by Dr. Simon, who published a description 



