The Shifting of the Curves of Variabilitx. 553 



of March in exactly the same manner as described above ; 

 as soon as the seedhngs had fully unfolded their cotyle- 

 dons they were planted out into the same comi)ost as in 

 1892, and treated in the same way subsequently. Towards 



CULTURE OF THE SEEDLINGS IN POTS ; OENOTHERA 



RUBRINERVIS. 



From which the following vahies have been calculated for Qi, 

 M, Q2: 



