only be determined by the following generation. As a parental character it must pass over unchanged to the whole of the offspring; as a hybrid-character, on the other hand, it must maintain the same behavior as in the first generation. Р [6] The Second Generation From the HybridsРThose forms which in the first generation exhibit the recessive character do not further vary in the second generation as regards this character; they remain constant in their offspring. РIt is otherwise with those which possess the dominant character in the first generation. Of these two-thirds yield offspring which display the dominant and recessive characters in the proportion of 3:1, and thereby show exactly the same ratio as the hybrid forms, while only one-third remains with the dominant character constant.