148 



Dr. J. B. Sanderson. 



[Dec. 15. 



December 15, 1881. 



THE PRESIDENT (followed by THE FOREIGN SECRETARY) ' 



in the Chair. 



The Right Hon. Sir William Vernon Harcourt, whose certificate 

 had been suspended as required by the Statutes, was balloted for and 

 elected a Fellow of the Society. 



The Presents received were laid on the table, and thanks ordered for 

 them. 



The following letter addressed to the President of the Royal Society 

 was read : — ■ 



Institut de France, Paris, 5th of December, 1881. 

 My deae Me. President, — In the meeting of the Academy of to-day 

 M. Dumas has read a letter from Professor Williamson, informing the 

 Academy that the Copley Medal has been awarded to me. I know 

 well and appreciate highly the value of that reward, and I beg you to 

 offer to the Royal Society my sincere thanks. 



That illustrious body honoured me, seventeen years ago, by electing 

 me as one of its foreign members, and now has been pleased to crown 

 my far advanced scientific career. 



I beg leave to give to my English colleagues a proof of my respect- 

 ful regard by presenting to them the first results of new researches on 

 the synthesis of oxygenated bases. By the reaction of glycol-chlor- 

 hydrine on collidine and on quinoline I have obtained new alkaloids, 

 which present a close connexion with neurine. Very soon I intend to 

 send over to Professor Williamson a paper on that subject. 



I am, with the highest regards, 

 Sincerely yours, 



Ad. WURTZ, 

 President of the Academie des Sciences. 



The following Papers were read : — 



I. " On the Electromotive Properties of the Leaf of Dionasa 

 in the Excited and Unexcited States." By J. Burdon 

 Sanderson, M.D., F.R.S., &c. Received October 27, 1881. 



(Abstract.) 



The paper consists of five parts. Part I is occupied by the exami- 

 nation of two experimental researches, relating to the subject, which 



