352 DesaipUoii oj' an impTO'ccd Jpparaluifor dLiilUiig. 



this force and tiiis influence are regulated, and mutually act on 

 each other ; and it is evident they act on each other witii a force 

 exactly in proportion as tlie one or the other is in excess or de- 

 ficient. In fact f (here appears in nahire a strong teridency to 

 pos.^ess a relalii e and an appropriate share of this principle; and 

 whenever this distribution is disturbed or accumulated on one 

 point, and abstracted from another, this power is at the same 

 instant exerted. The one body is as ready to part with its ex- 

 cess as the other is to receive its deficiency, and this exertion to 

 effect a proper diiitribution keeps up all the movements and 

 ciianges of the universe. The quantity in that place which is 

 .overcharged, rushes to that which is undercharged, with a forca^ 

 Fjearing an exact ratio to the overcharge of one and the under- 

 charge of tlie otl.er, when nothing intervenes to oppose the ac- 

 tion of this law. But as it is from substances intervening of dif- 

 ferent specific capacities and conducting powers, Sjc. that these 

 eommotions themselves take place, in its distribution this law is 

 modified by an infinite number of circumstances, and of course 

 produces, bv the qualities of the particles, and these qualifying 

 circumstances attending these agencies, all the various result* 

 which it is the object of chemical philosophy to investigate. — 

 Whether these results are those of nature or those of art, and 

 however varied the circuu'.stanccs, the power and the primary 

 law of that j>ov,-er are the same. 



[To be continued.] 



LX, Description of Air. Henry Tritton's improved Ap- 

 paratus Jor Disti/laiiun, 



A HIS apparatus, for which the inventor has obtained patent? 

 for the United Kingdom and t^e Colonies, is so simple, so effi- 

 cacious, and at the same time so important In its results, that we 

 arc persuaded our readers will feel gratified in being made ac- 

 quainted with it. 



Mr. Tritton incloses the body of his still in an outer case 

 nlled with water in such a manner that no heat can get to the 

 still, but through the medium of the water, and consequently 

 no heat greater than the boiling point of water can reach 

 its contents. Before commencing the distillation, the still 

 and the other vessels connected with it are exhausted of aif 

 bv means of an air-pump. A close condensing vessel is used, 

 instead of the worm commonly employed, which is connected 

 with a close receiver by means of a pipe ; and in the pipe there i* 

 a stop-cock bv which this communication may be closed as oc- 

 casion requires. The receiver has on its top a stop- cock for 



the 



