Mr. C. Binks on Voltaic Electricity. 171 



mined by the quantity of metal oxidized, as the most conclu- 

 sive proof of the dependence of current electricity upon che- 

 mical action ; but to my great surprise, I am now given to 

 understand that those important facts do not prove anything 

 at all in favour of the chemical theory, though I have not yet 

 been so happy as to meet with even the slightest attempt to 

 explain them according to the principles of Volta's hypo- 

 thesis. Certainly, if Faraday's beautiful discovery is rejected 

 as an evidence, we must despair of finding out another of 

 more weight ; and I am afraid any further discussion upon the 

 subject with our antagonists will prove perfectly useless and 

 a mere waste of time on our part. 



I am, gentlemen, yours, &c. 

 Bale, 14th June, 1838. C. F. ScHCENBElN. 



XXIII. On some of the Phcenomena and Laws of Action of 

 Voltaic 'Electricity, and on the Construction of Voltaic Bat- 

 teries, S^c. By Christopher Binks. A Second Communi- 

 cation, addressed to J. F. Daniell, Esq., F.R.S., S^c., Professor 

 of Chemistry in King's College, London. Part the First*. 

 [Continued from p. 145.] 

 Section VI. 

 T^O determine the comparative amount of voltaic action in- 

 ■*- duced in any single arrangement under different distances 

 of the two elementary plates from one another, continued. 



115. The preceding part of the inquiry relates to the in- 

 fluence exercised by distance upon a voltaic arrangement, in 

 which the elementary plates are of an equal size relatively ; 

 and it has been shown (84 to 92) that of whatever magnitude 

 the couple itself may be, so long as its two plates are equal in 

 size one to the other, the influence of distance is the same as 

 has been stated in the preceding section. 



116. It is now required to find the comparative effects of 

 distance in any arrangement, when the elementary plates are 

 of an unequal size relatively, but whilst all other conditions 

 of the experiment remain the same as before. 



117. The elementary plates may differ from one another in 

 size to any extent : the zinc plate may be a small one, and the 

 copper plate be made the larger, and that to an unlimited ex- 

 tent ; or, on the other hand, the copper plate may be made the 

 smaller of the two, and the zinc one be increased in size to an 

 unlimited extent. 



» This portion of Mr. Binks's Second Cpminunication was by mistake 

 termed Part the Second in our last, 



