620 The American Naturalist. [July, 
could be seen very distinctly. The exception was as follows: 
The shoot of a red beet was worked on the root of a white 
mangel wurzel? (Futterriibe) and subsequently a red color 
appeared in the swelling around the inserted cion. No such 
color was visible on the rest of the root, nor could any such be 
found on other ungrafted roots of this variety. It would seem 
that the color in this root was due-to the influence of the graft 
and that this experiment supports Lindemuth’s observations. 
Nevertheless this case is not entirely beyond suspicion since 
colored beets are apt to develop most color in the vicinity of 
wounds, and because all varieties of beets are nearly related 
and though apparently constant may possess latent peculiar- 
ities. (b) Union of bodies of different sizes. Very large white 
beets were grafted on small dark red ones and vice versa, the 
parts being about the same size when united. In the first case 
the plants grew more than in the second, i. e. because they had 
a larger leaf surface for assimilation. (c) Union of varieties 
having unlike shapes. Each grew after its own manner unin- 
fluenced by the other. M. Gaillard tried grafting Cucurbitace- 
ous plants and got the same result. ‘White, green and yellow 
colocynths were united but there was no blending of colors. 
Several attempts were made to procure graft-hybrids. The 
author wholly failed to get variegated hyacinth flowers by a 
union of different bulbs. Even when the union took place be- 
tween blossom stalks there was no mixture. In experiments 
with potatoes his results confirm Lindemuth’s. There was no 
mixture. Many experiments were tried using well marked 
and constant varieties very distinct in color and form. He 
discarded the tubers and worked with young, well-rooted 
shoots which were removed from the tubers, set out in the 
earth, and grafted as soon as they were a short distance above 
the ground. As soon as the cions were healed on, the plants 
were put into a hot bed. They remained here until the fall 
of the leaves in autumn, care being taken to remove all the 
green leaves which appeared from time to time on the stock so 
that it should be nourished only by the vegetation of the cion. 
At the close of the experiment the tubers were found to possess 
all of the peculiarities of the mother plant. The cions did not 
