RECORDING OF DATA 



then tabulated on a master sheet (Fig. 11). 

 Each female carries her ov;n number and to it is 

 added the number of the experiment and the year 

 in which it was performed. Thus in the number 

 3646.8 the 36 represents the experiment, the 46 

 the year in which the experiment was performed, 

 and the .8 the eighth Fl female set in the 

 experiment . 



This method of recording data is suggested 

 by the writer as it offers the most convenient 

 and accurate way of keeping track at all times 

 of each Fl female and her progeny involved in 

 any experiment. 



73 



