l88 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
COMMONPLACE NOTES. 
A Fine Judas Tree. 
In Vol. XLL, p. 5, of this Journal Mr. Irwin Lynch referred to 
the remarkably fine Judas Tree (Cercis siliquastrum) at the Botanic 
Garden, Cambridge, measuring 27 ft. 6 in. in height. Mr. H. E. 
Luxmoore, of Eton, writes that a tree in his garden is even taller 
though of less circuit of branches. It measures 29 ft. 2 ins. in height, 
and has freely sown its own seeds on more than one occasion. 
Conference on Allotment Gardening. 
A Conference of the Society's Special Horticultural Lecturers 
from all over the country who are engaged in furthering the Food 
Production Campaign upon which the Society embarked at the be- 
ginning of August 1914, and which it has been carrying on vigorously 
ever since, was held for a fortnight at Wisley from September 24, 
1917. It was under the direction of Mr. F. J. Chittenden, Head of 
the R.H.S. Laboratory and School of Horticulture, Mr. A. S. Galt, 
Horticultural Organizer for Yorkshire, and Mr. C. Wakely, Horti- 
cultural Instructor in Essex. As it was the first of its kind, the 
programme, which we give below, may prove of interest. 
PROGRAMME. 
Monday, September 24. 
2 P,M,- 5. Introductory Remarks. F. J. Chittenden. 
The Value of an Allotment. Quarter of an hour addresses by 
F. J. Chittenden, A. S. Gait, C. Wakely. 
Brief inspection of the Wisley Garden, 
Tuesday, September 25. 
9.30 a.m. The Soil ; its Nature and Structure. F. J. Chittenden. 
10.30 a.m. -12. 30. Ground Work. C. Wakely. 
2 p.m.— 5. The Laying out of Allotment Plots, Position, Size, etc. Pro- 
tection. A. S. Gait. 
Exhibition of Onions, 
Wednesday, September 26. 
9.30 a.m. The Soil and the Plant — the Air Supply, F t J. Chittenden, 
10.30 A.M.-12.30. Cultivation. A. S. Gait. 
2 p.m.- 5. Hardy Fruits — Bush Fruits. C. Wakely, 
Demonstration on Pruning. 
Thursday, September 27. 
9.30 a.m. The Soil and the Plant — the Water Supply. F. J. Chittenden, 
10.30 A.M.-12.30. Onions and Leeks for Allotment Gardens, C. Wakely, 
2 p.m.— 5. Potato Cultivation. A. S. Gait, 
Exhibition of Potatos, 
