24 



Trans. Acad. Sci. of St. Louis. 



The value of a for each speed in the previous table is given 

 in column 2 of the following table for a temperature T= 293. 



The mean value of a in the table being put in Eq. (3), the 

 pressure at the axis may be computed. These values are 

 given in column 3. The differences between these computed 

 values and those of the previous table are given in the final 

 column. 



If the value a in (3) be assumed a = ^rp t the value of K 

 is found to be 0.6606. 



