XX PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 
Scientific Committee, January 31, 1899. 
Dr. M. T. Masters in the Chair, and nine members present. 
Potato-grafting, — Mr. A. W. Sutton exhibited the results of his 
experiments, which were of a very interesting character. They had 
reference to the grafting of a scion from the Tomato on to the haulm 
of a Potato stock, and a similar engrafting of Solanum nigrum and of 
Solanum esculentum. The Potato in each case was grown in a pot, the 
hauhn cut back and worked with the Tomato or the Solanum. Further 
experiments were made in fertilising the flowers of a Potato borne on a 
Potato-scion engrafted on a Tomato-stock, and vice versa. Tubers of 
uncrossed and of crossed Solanum Maglia were also shown, together with 
tubers of Solanum etuberosum and other varieties. The following details 
refer to the specimens exhibited : — 
Potato Grafts. 
No. 1. — Typical sample of the old Paterson's Victoria Potato. 
Potato Victoria grafted with a scion of Tomato. 
No. 2. — In 1895 a plant of Victoria Potato was grafted with a scion 
from the Tomato (variety Maincrop), and all the Potato stems other than 
the one grafted with Tomato were carefully removed. The graft was 
made about 3 inches above the soil. The tubers produced by this plant 
in 1895, 1896, and 1897 were certainly small, and in striking contrast to 
the typical Victoria. The tubers now sent marked No. 2 are a fair 
sample of those grown last season for comparison with type No. 1. 
They were very small. 
Potato Victoria grafted with scion of Solanum nigrum. 
No. 3. — In the same year (1895) another plant of Potato Victoria was 
grafted in the same manner, but the graft in this case was Solanum 
nigrum. The tubers marked No. 3 of crop 1898 do not differ from the 
type No. 1 (ordinary Paterson's Victoria). 
Potato Supreme grafted with a scion of the Egg-plant, 
(Solanum esculentum). 
No. 4. — In 1895 a typical sample of Potato Supreme was grafted with 
a scion from the Egg-plant. In this case also the character of the Potato 
has been unaffected by the graft. 
No. 4a are tubers grown in 1898 from the grafted plant. 
Experiments in Cross-fertilising Potato-flowers home upon the 
Tomato -plant grafted with Potato. 
No. 5. — A typical sample of the old Potato Woodstock Kidney. 
No. 5a. — In 1895 a stock of Tomato, Earliest-of-All, was grafted with 
a scion of Potato Woodstock Kidney. The Potato -flowers produced on 
the scion were fertiHsed with pollen from the Tomato Earliest-of-All, 
and seed saved in the summer 1895. The seed sown in March, 1896, 
produced tubers mostly small and diseased. In 1897 the crop again 
was very small and diseased. In 1898 the crop was a good one, the 
