a63 Royal Sociclj of London. 



tenat, of the National Inftitute. Four numbers of tl>is work 

 have aUeady appeared : the fifth is about to be publUlied. 



MINERALOGY. 



A vcrv" valuable trcatife on this fub'ieciil has ]u(l been pub- 

 liflied by C. Hauv, member of the National Inftitute, and 

 keeper of the mineialogical colleAions of the School of 

 !Mines ; 4 vols. 8vo., and a quarto volume- of plates. A fine 

 edition of the fame work, confifting of the fame number of 

 volumes, in 4to., was publithed at the fame time. 



XLVl. ProceeJwgs of Learned and Lconomical Societies. 

 ROY.^L SOCIETY OK LONDON. 



A 



.T the anniverlary meeting on the 30th of November 

 the amount of receipts and expenditures was declared, and; 

 the names of the new and the deccafed members were read 

 over by the fecretary. 



The' prefident, the Right Hon. Sir .Tofeph Banks, K. B. 

 in the name of the Society, prefeuted Sir Godfrey Copley's 

 jxold medal to Mr. Aftley Cooper for his paper on the efFe6ls 

 which take place from thedeftruc^ion of the membrana tvm- 

 pani, and on vin operation for the removal of a particular fpe- 

 cies of deafnefs. 



Afterwards the Society proceeded to the choice of the 

 council and officers for the enfuing year. 



The members, as ufual, on that day dined together at the 

 Crown and Anchor tavern, in the Strand. 



Dec. 10. was read a paper by Dr. JNIatkelyne, aftronomer 

 royal, drawn up from the notices publiflied by Piazzi, of his 

 diicovery of a new planet rather larger than our earth, and re- 

 vobing in an orhit between Jupiter and Mars; to which he 

 ]-ropofes giving the name Ceres Ferdinatidia. All doubts re- 

 fpedrng this difcovery will be refolved at its next appeararice 

 in iWarch 18c;:. 



On the 17th was read a paper, by Everard Home, Efq. 

 giving an account of one of the moll extraordinary fubjecls 

 of comparative anatomy that has ever appeared — a defcrip- 

 tion of the Platjfus anatinus, an amphibious animal, of 

 which a male and a female were brought from New South 

 Wales. They are there found on the banks of one of the 

 lakes, in which they fwim not on the furface, but occafionally 

 c.yme up to refpire. It has four fhort legs furnifiied with 



