The inheritance of certain Quantitative Characters in Tobacco. 125 
2. The F, generation is of intermediate value, the mean for leaf 
number being almost exactly equal to the average of the parental 
means. 
3. The F, generation is no more variable than the parents. 
ea 
Fig. 6. 405—1—1, Cuban. Grown under shade at Bloomfield, 1912. 
4. Different variates in F, give similar results in F, showing the 
F, variation to be of no germinal value. 
5. The F,generation is much more variable than the parents or F}. 
6. Some of the F, generation breed true in F3, giving no greater 
variability than the parents themselves, others give an intermediate 
variability between that of the parents and F,, and others are as 
variable as the F, generation itself. 
