234 Dr. Hare on the Theories of Electrical Phenomena. 
In the galvanic circuit this process is sustained by chemical reac- 
tion; but without any co-enduring cause, how is it to be sustain- 
ed permanently ina magnet? Is it reasonable to assume that 
the heterogeneous constituents of an imaginary tertium quid are 
perpetually separating only to reunite? 
16. In cz plex affinity, where four particles, A BC 
D are united into two compounds A B, C D, it is easy to con- 
ceive that, in obedience to a stronger affinity, A shall combine 
with C, and B with D: but, without any extraneous agency, 
wherefore, in any one compound, should a particle A quit one 
particle B, in order to unite with another particle of the same 
kind; or wherefore should any one, B, quit one A, in order to 
combine with another A. 
17. That such a process should take place in consequence of 
the inductive agency of a similar process already established in a 
magnet or galvanized wire, were difficult to believe ; but it would 
seem utterly incredible that the most transient influence of suc 
induction, should be productive of such permanent electrolytic 
gyration as has been above specified. Moreover, it is inconceiv- 
able that the particles of any matter should, as required by this 
hypothesis, merely by being put into motion, acquire a power of 
reciprocal repulsion, or attraction, of which it were otherwise 
destitute. 
18. The vortices being assumed to take place about each atom, 
cannot severally occupy an area of greater diameter than can €X- 
ist between the centres of any two atoms. Of course, the gyra- 
tory force exercised about the surface of a magnet by the aggre- 
ate movements of the vortices, cannot extend beyond the sur- 
face more than half the diameter of one of the minute areas of 
gyration alluded to. Wherefore, then, do these gyrations, when 
similar in direction, from their concurrence approach each other ; 
when dissimilar in direction from contrariety, move away, even 
when situated comparatively at a great distance 
19. I should consider Ampére’s theory as more reasonable, were 
it founded upon the existence of one fluid; since, in that case, 
vortices might be imagined without the necessity of supposing 
an endless and unaccountable separation and reunion of two sets 
* See my Compendium, ‘Treatise of Electro-magnetism, page 120. 
