'i08 



to all the globules of air that immediately encompass 

 this body. These globules cause the like vibrations in 

 those contigious to them : and this continues in the 

 same manner to greater distances than we are able to 

 determine. A fine and elastic membrane spread at the 

 bottom of the ear like the parchment of a drum, re- 

 ceives these concussions, and conveys them to three 

 small bones, placed end to end, that communicate 

 them, in their turn, te certain bony and winding cavities, 

 lined on their inside with nervous filaments, which join 

 to the brain by a common trunk. The greater or less 

 degree of swiftness of these vibrations produces seven 

 principal tones, analogous to the primitive colours. 

 From the combined relation of various tones, harmony 

 proceeds. 



The infinitely small particles that are continually de- 

 tached from the surface of odoriferous bodies, float hi 

 the air, which transports them every where, and applies 

 them to the nervous membranes that are distributed in 

 the inside of the nose. The concussions which these 

 corpuscles occasion therein, pass afterwards to the brain 

 by the lengthening of the nervous filaments. 



S. All climates have their productions, all parts of the 

 earth their inhabitants : from the frozen regions of the 

 bear to the burning sands of the torrid zone, all is ani- 

 mated : from the top of the mountains to the bottom of 

 the valhV.s, every thing vegetates and respires. The 

 waters and the air are peopled with an infinite number 

 of inhabitants. Plants and animals are themselves little 

 worlds that nourish' a multitude of people, as different 

 from each other in their figure and inclinations as the 

 great people are which are scattered over the surface of 

 oar glob<j. What ami saying.' The smallest atom, the 

 least drop of Hquor are inhabited. Wonderful harmo- 

 ny ! which, by thus suiting different productions to dif- 

 ferent places, leaves none absolutely desert ! 



9 A reciprocal commerce connects all terrestrial 

 beings, Inorgauized beings answer to organized as fc& 



