156 RELATIONS. 



to the other for the purpose of conveying it from one to 

 the other, is as manifest as it is amongst the dilYerent ves- 

 sels employed in a distillery, or in the communications be- 

 tween them. The animal structure, in this case, being 

 simple, and the parts easily separated, it forms an instance 

 of correlation which may be presented by dissection to every 

 eye, or which, indeed, without dissection, is capable of be- 

 ing apprehended by every understanding. This correla 

 tion of instruments to one another fixes intention some- 

 where. 



Especially when every other solution is negatived by the 

 conformation. If the bladder had been merely an expan- 

 sion of the ureter, produced by retention of the fluid, 

 there ought to have been a bladder for each ureter. One 

 receptable, fed by two pipes, issuing from different sides of 

 the body, yet from both conveying the same fluid, is not to 

 be accounted for by any such supposition as this. 



III. Relation of parts to one another accompanies us 

 throughout the whole animal economy. Can any relation 

 be more simple, yet more convincing, than this, that the 

 eyes are so placed as to look in the direction in which the 

 legs move and the hands work ? It might have happened 

 very differently, if it had been left to chance. There were, 

 at least, three quarters of the compass out of four to have 

 erred in. Any considerable alteration in the position of 

 the eye, or the figure of the joints, would have disturbed 

 the line, and destroyed the alliance between the sense and 

 the limbs. 



IV But relation perhaps is never so striking, as when 

 it subsists, not between different parts of the same thing, 

 but between different things. The relation between a 

 lock and a key is more obvious, than it is between differ- 

 ent parts of the lock. A bow was designed for an arrow, 

 and an arrow for a bow ; and the design is more evident 

 their being separate implements. 



Nor does the works of the Deity want this clearest spe- 

 cies of relation. The sexes are manifestly made for each 

 other. They form the grand relation of animated nature ; 

 universal, organic, mechanical ; subsisting, like tlie clear- 

 est relations of art, in different individuals : unequivocal, in- 

 explicable, without design : — So much so, that, were every 

 other proof of contrivance in nature dubious or obscure, 

 this alone would be sufficient. The example is complete. 

 Nothing is wanting to the argument, I see no way what- 

 ever of getting over it. 



