126 
Prescott . — The Flowering Curve of 
\ 
value of K has been calculated, and it will be seen that K is practically 
constant over the whole range of the observed data. From the average 
value of K the actual theoretical curve can be calculated, and this 
has been done in a number of cases which are given in the 
figures. The original data from which the values of the constants have 
been calculated are given in Table II and the constants themselves in 
Table III. 
Fig. 6. Flowering curves of the dates of sowing experiment, Bahtim, 1920. Sakellaridis 
and Pilion are well-known commercial varieties. 
dx 
In Figs. 4 and 5 are given the -7- calculated curves together with the 
Cl z 
familiar flowers per plant per day ; in one case (Fig. 4) the actual daily 
counts are given, while in Fig. 5 the more usual five-day mean curve is 
given. It is only possible to smooth out these intensity curves after the 
summation curve has first been constructed from the data and then analysed 
along the lines given in this paper. 
In Fig. 1 (1), representing the flowering curve given by W. L. Balls for 
