48 



EXPERIMENTS WITH IONIZED AIR. 



TABLE 5 — SHOWING THE INSUFFICIENCY OF A SIMPLE GEOMETRIC 



PROGRESSION. 



7. JiifiiiJfiiiiiKij of tin ti/iiation of leakage. — As I have not made up my mind 

 as to a satisfact«)ry explanation I give above an exhibit of the iiiadeiiuaey of the 

 simple geometric equation. Let the observations be separated into two halves and 

 the constant <•' be computed from corresponding members V, /, and V, f, of the two 

 series. The values c' and / of table 5 show the datum so obtained and the mean- 



