282 ZOOPHYTES. 



by its evident effects, and these rather positive than negative. Also, fa- 

 culties wholly unknown, may belong to the humbler tenants of the universe. 



It does not appear, however, that those animals deemed more per- 

 fect, from extraordinary acuteness of sight or smell : or that those whose 

 fleetness can almost outstrip the wind, enjoy any higher place than their 

 less gifted fellows. 



Perhaps, from resemblance, position, or other reasons, we allot organs 

 of sense to some of the zoophytes, which are not truly such, nor convey 

 the impressions transmitted by the corresponding organs of other crea- 

 tures. 



Sounds do not seem to give zoophytes any disturbance. Light makes 

 considerable impression on many : but the faculty of sight is equivocal, I 

 believe I may say in all. The sense of feeling is acute, nor can there be 

 any doubt of the faculty of taste from the evidence of selection. If some 

 have the power of smelling, the subjects are generally very close, so that 

 it may be questioned whether the escape of volatile particles of grosser 

 description than mere emanations, does not stimulate an external sense. 



Though most of the senses belonging to the more perfect animals are 

 not recognised by us in this extensive tribe, the zoophytes, the animals 

 composing it are always aware of the quality of the element wherein they 

 are appointed to dwell. They are not insensible of a genial atmosphere, 

 and some can apparently discriminate night from day. 



When the fluid surrounding them is stale or impure, those having 

 shelter, withdraw to pertinaceous retreat : some swell a little, as if to 

 stretch beyond the deleterious influence : almost all simply contract to 

 smaller bulk, without attempting any vigorous effort to escape by quitting 

 their abode. 



Zoophytes, independently of mere sensations, testify some conscious- 

 ness of the circumstances wherein they are placed. The most unequivocal 

 symptoms shew their enjoyment of the renovated element, it summons 

 them into life and action from their longest retreat : they hasten forth with 

 all their organs displayed in the amplest form, to reap the whole benefit, 

 promoting invigoration. The simple effects of sensation may accomplish 

 this ; but an external shock, warning them of danger, they disappear 



