Royal Society of London. 327 



tion of such faces as are adjacent or otherwise. Lastly, he inves- 

 tigates the angles made by edges of the secondary form*. 



On Tuesday, the 30th of November, being Saint Andrew's Day, 

 the Anniversary Meeting of the Society was held according to 

 annual custom. On taking the chair, the President informed the 

 Society that the following gentlemen had been elected into it since 

 the last anniversary, namely, 



John Bailey, Esq., 



Anthony Mervin Storey, Esq., 



Mr. Michael Faraday, 



Charles Scudamore, M.D., 



Thomas Amyott, Esq., 



William Wavell, M.D., 



Rev. Edw. Maltby, D.D., 



John Jebb, Lord Bishop of Limerick, 



Capt. Philip Parker King^, R.N., 



Major-General Sir John Malcolm, G.C.B., 



Horatio, Earl of Orford, 



Woodbine Parish, Esq., 



Sir Francis Shuckburgh, Bart., 



Edmund Henry Lushingtim, Esq., 



Rev. Edmund Goodenough, D.D„ 



John Gage, Esq., 



Charles Mackintosh, Esq., 



Rev. William Vernon, 



Lieut. Henry Foster, R.N., 



Capt. Douglas Charles Clavering, R.N., 



Rev. Baden Powell, M.A., 



Major Charles Hamilton Smith, 



William Scoresby, Jun., Esq. 



♦ In this communication, Mr. Whewell refers to a paper by Mr. Levy, who 

 had previously, unknown to Mr. W., employed the representation of a sacondary 

 plane, by its equation referred to the three principal edges of the primitive 

 form ; but only in a particular case, whereas the investigations and notation ii> 

 the present paper are absolutely general. 



