SUPPLEMENTARY STUDIES ON THE DIFFER- 

 ENTIAL MORTALITY WITH RESPECT TO 

 SEED WEIGHT IN THE GERMINATION 

 OF GARDEN BEANS— II 



Cai;n 



. ARTHUR HARRIS 



IxsTurTiox of Wash: 



Comparison of Means 

 Take first the most stringent comparison — that between 

 the constants of the seeds germinating normally and 

 those of the seeds failing to germinate, A-C. The fre- 

 quencies and mean magnitudes are : 



+3.50 

 +0.00 



Or considering only differences which are at least 2.5 

 times their probable error: 



For the 18 cases in which the differences are at least 4 

 times their probable errors the results are: 



Plus (lirtYrniccs j 12 +0.536 ^ +5.73 



All differences \ 18 | -pll87 | + 0.17 



These facts in a somewhat different form are made 

 clear to the eye in Diagrams 1 and 2. 14 



