110 GENERAL CONSIDERATIONS, ETC. 



of which they are fixed, as far as necessary, on the surface. 

 Such a relation, of course, involves details as to the density 

 and elasticity of structure, as well as size of the organic tenants, 

 in proportion to the gravity of the respective planets peculi- 

 arities, however, which may quite well consist with the idea of 

 a universality of certain types, such as we see exemplified 

 upon earth. We come to comparative matter of detail, when 

 we advert to heat and light ; yet it is important to consider 

 that these are universal agents, and that, as they bear marked 

 relations to organic life and structure on earth, they may be 

 presumed to do so in other spheres also. The considerations 

 as to light are particularly interesting, for, on our globe, the 

 structure of one important organ, almost universally distri- 

 buted in the animal kingdom, is in direct and precise relation 

 to it. Where there is light there will be eyes, and these, in 

 other spheres, will be the same in all respects as the eyes of 

 tellurian animals, with only such differences as may be neces- 

 sary to accord with minor peculiarities of condition and 

 of situation. 1 It is but a small stretch of the argument to 

 suppose that, one conspicuous organ of a large portion of our 

 animal kingdom being thus universal, a parity in all the other 

 organs species for species, class for class, kingdom for king- 

 dom is highly likely, and that thus the inhabitants of all the 

 other globes of space bear not only a general, but a particular 

 resemblance to those of our own. 



It must be obvious, that, if organic beings are thus univer- 

 sally distributed, the idea of their having all come into 

 existence through the power of God acting by the laws every- 

 where applicable, is strictly conformable to the principle sug- 

 gested for our own limited sphere. As by one set of laws he 

 produced all orbs, their motions and geognostic arrangements, 

 so by another set of laws he may be supposed to have over- 

 spread them all with life. The whole productive or creative 

 arrangements would thus appear in unity. 



1 The fishes that inhabit our own deep seas are circumstanced, as 

 regards light, very much like the inhabitants of Uranus or Neptune. 

 Correspondent. 



