Stream of Air upon a Plate. 



137 



TABLE VI. 



It appears from this Table that upon varying the pressure 

 the radii of the principal circles remain very nearly constant, 

 while the amount of the minimum pressure varies nearly as the 

 pressure applied at the orilice, except when the plates are very 

 near indeed. 



The pressure on any circle of the disc is plainly proportional 

 to the pressure indicated by the gage on that circle and to its 

 radius, jointly. The curves in Fig. 6. are constructed on this 



Vol. III. Part I. S 



