624 



BELL SYS 1 EM TECHNICAL JOURNAL 



d2 Number 12 

 total = 421 

 average =8. 42 



d3 Comets 

 total =258 

 average =2. 58 



d4 PaHiclcs in emulsion 



total =46 



average =0.92 



d5 Particles in emulsion 

 total = 106 

 average =2. 12 



* M is the relative frequency of exactly c occurrences per sample. Holm does 

 not state the actual number of samples from which this was calculated, but it was 

 evidently at least 1000. 



** Since in the range a>30 the curves are drawn only for every fifth value of c, 

 in these two distributions which extend beyond a = 30 the values of/ and F are 

 tabulated only for every fifth value of c, and the values of m, which are meaningless 

 unless the complete series is given, are omitted. 



