7J ' ON GALVANIC BATTERIES. 



the history of science; and with respect to this object, my 

 papers, deposited in the archives of the Society, may certify 

 the date of the steps; which however were not completed, 

 for since that time I have carried them farther. Therefore, 

 for your Journal, if you accept my offer, I shall take the 

 subject as it now stands, dividing it under three heads : 

 Analysis of the Galvanic Pile.- — Production of an Instru- 

 ment ghMng spontaneous signs of Electricity ', without chemi- 

 cal Effects. — Analysis of the Electric Machine, compared 

 with that Instrument. 



If you are disposed, Sir, to undertake this publication, I 

 shall not have recourse to any other method of giving these 

 experiments to the public. You may insert this letter iu 

 your next number, in order to announce the subject ; for 

 the following number, you shall have the tirst of the above 

 papers, and the others in monthly succession. To each pa- 

 per a drawing will be annexed, but I shall make these as 

 simple as possible. 



I shall be very happy to have with you this new connexion, 

 and I remain, Sir, 



Your obedient humble servant, 

 Windsor t D£ LUC. 



^d March, 1810. 



Annotation. — This letter is inserted at the request of the 

 learned author, to whom I have answered, that I shall be 

 happy to pay every attention to his communications, which 

 ysy duty as a Journalist, and the nature and importance of 

 those writings, may demand. W. N. 



XV. 



Observations on Galvanic Batteries. In a Letter from Mr. 

 Charles Sylvester. 



To Mr. NICHOLSON. 

 Dear Sir, Derby, April 17 th, 1810. 



Facts in the ar- JL HE article Galvanism, which I had the honour to 

 ^Nkhl^n"! write ior the Encyclopaedia lately published by you, coiw 



tains 



