on my mind, is, that perhaps the ul- 

 timate arrangement of matter, like its 

 ultimate particles, may form a subject 

 too subtile for human perception. Our 

 information in these respects must be li- 

 mited, as our powers of perception have 

 their bounds. The imperfection of the 

 human senses does not, however, seem 

 a subject of regret; because it induces 

 a greater necessity for the exertions of 

 intellect; and many subjects appear far 

 more demonstrable toreasoij than to sense. 



Fontana, it must be granted, possessed 

 considerable talent in microscopical ob- 

 servations, for he -says, that he could rea- 

 dily distinguish the nature of any animal 

 substance, which might be placed oa the 

 field of his microscope, by regarding its 

 ultimate fibres, and according to him the 

 muscular fibres are much smaller than 

 those of the nerves. Proscaska and others 



