ISS 5 .] 
Seen and the Unseen. 
641 
animals existing, which were successively and gradually 
developed, accompanying the formations of rock in which 
they . . . are found), each form a successive link of the 
forms produced.” “ At each geological epoch there are 
seen corresponding productions of the Vegetable and Animal 
Kingdoms.” 
“ The atmosphere which surrounds this Globe has corre- 
sponding strata of formations, each holding a position in 
rotation to the Earth according to its specific gravity. The 
Earth possesses an attractive power over the same, the 
influence of which counteracts its expansive force, and pre- 
vents the formation of an atmospheric connection with other 
earths in existence ; each stratum exerts a pressure on that 
which is beneath it, and the whole produces a weight which 
is confining every particle or substance existing upon the 
surface of the Earth.” 
Nature must of necessity, according to an Eternal law, 
operate as an effeCt or secondary cause to produce higher 
and more perfect spheres of material existence. “ It was 
the objeCt for the Earth gradually to progress in its material 
perfection, to produce plants, animals, man. It is also the 
objeCt for Motion, Life, and Sensation to combine with the 
perfection of the former to produce the principle of inner life. 
... So the First or Great Positive Mind operates as a 
Cause, through Nature as an EffeCt, to produce Spirit as an 
Ultimate.” 
“ Is there not an internal and external evidence of this 
which transcends words to express thought ? Are there not 
inward convictions dwelling in the mind corresDonding to 
its desires for a future and eternal state ? Does not the inter- 
nal constitute the substance of the external ? Does not Nature 
as an external effeCt point deeply and indirectly to the internal 
or fountain of its original production ? Do not the insepa- 
rable truths which each science unfolds . . . terminate in 
one common focus ? ” 
All this evidence is contained in the physical organisation 
of man, yet, owing to his sphere of existence, the subject of 
a future life cannot be demonstrated to his senses. Man 
contemplates Nature and her laws as eternally and invisibly 
producing results according to their inherent qualities and 
forces. The highest and most important subject to com- 
prehend is the inward reality which constitutes the ultimate 
existence of the contemplator. 
The Uniformitarian system of Geology, by internal and 
external evidence, demonstrates its truthfulness. In various 
parts of the Earth strata have been deposited which are 
