222 OUTLINES OF NATURAL PHILOSOPHY. 



to flow in pipes along a conical surface, diverging 

 downwards, and is discharged through several aper- 

 tures. 



On the construction of this machine, see EULER, Mem. 

 de TAcad. de Berlin, torn. vi. (1750,) p. 311. ; 

 and, again, torn. vn. p. 271. ALB. EULER, Eno- 

 datio, &c. 64. BOSSUT, Hydrod. torn. i. 424. 

 BREWSTER'S Notes on FERGUSON'S Lectures, vol. u. 

 p. 205. 



AEROSTATICS. 



