46 



Electricity," all his own results appeared to fall in naturally with 

 the general views therein explained. He considers, that the direction 

 of the force through an electrolyte may be expressed in the very 

 words employed in that paper to describe that of the direct inductive 

 force in statical electricity, simply substituting the term Electrolyte 

 for Dielectric, and the term Current for Induction. 



Experiments are further described, in which the effects of various 

 combinations of different generating and conducting surfaces, placed 

 at different distances apart, were measured by the calorific galvano- 

 meter, from which the following conclusions are drawn : 



1st. That the energy of the force is about sextupled by the ab- 

 sorption of the hydrogen at the conducting surface ; except in the 

 case of equal plates, when it is more than quadrupled. 



2nd. That the effect of distance is much more decided in the in- 

 stances where the amount of the circulating force is greater, than in 

 the contrary cases. 



3rd. That the amount of force put into circulation from a large 

 surface of zinc towards a central ball of copper, is, as in former in- 

 stances of similar combinations, about one half of that from the re- 

 verse arrangement. 



4th. That a ball of zinc, exposing a surface of 3" 14 square inches, 

 placed over the centre of a plate of copper, exposing on its two sides 

 a surface of 28 square inches, sustains an action of nearly the same 

 amount as a plate of zinc, of the same dimensions as the copper, 

 placed at the same distance. 



In conclusion, the author remarks, that the principal circumstance 

 which limits the power of an active point within a conducting sphere, 

 in any given electrolyte, is the resistance of that electrolyte, which 

 increases in a certain ratio to its depth or thickness ; and this thick- 

 ness may virtually be considered the same wherever the included 

 point may be placed, but increases with the diameter of the sphere. 

 In an insulated hemisphere, however, the approximation of the active 

 point to the lower surface virtually decreases the thickness of the 

 electrolyte, and consequently the force increases. In this respect, 

 the action of a point upon a plate may be considered the same as 

 upon an indefinitely large hemisphere, towards which, as the point 

 approaches, the force increases. 



February 8, 1838. 

 STEPHEN PETER RIGAUD, Esq., Vice-President, in the Chair. 



George Lowe, Esq., who, at the Anniversary of 1836, had ceased 

 to be a Fellow, from the non-payment of his annual contributions, 

 was, at this meeting, re-admitted by ballot into the Society, agreeably 

 to the provision of the Statutes. 



James Bateman, Esq. ; Joseph Glynn, Esq. ; William Hallows 

 Miller, Esq., M.A. ; the Rev. Joseph Bancroft Reade, M.A. ; Robert 

 Bentley Todd, M.D. ; and Alexander Tweedie, M.D., were elected 

 Fellows, 



