xxxiv PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 
scalding is ' Lady Downe's Seedling.' The vine may be flourishing in 
every respect, but that does not matter ; and it always happens when the 
berries have just passed through the stoning period previous to colouring. 
While stoning is going on — that is, the hardening of the seeds — the berries 
do not increase in size : they remain stationary for five or six weeks. At 
the end of that time the seeds have come to their full development, and 
the berries increase rapidly in size. This is the time that scalding will 
happen. It can easily be prevented by throwing open the ventilators to 
their full extent in hot weather. Ventilation to a less extent should also 
be given at night. I should add that the berries will scald even if the 
sun does not touch them." 
Bose variegated. — Mr. G. Rawlings sent specimens of Rose-leaves, 
variously spotted with yellow, some leaflets being entirely yellow-orange 
in colour. He writes as follows : — 
" The leaves sent are from a tree of Baroness Rothschild, a portion of 
which came variegated last year. I budded a few buds on some named 
varieties, from which those sent have been cut. They are much more 
highly coloured than those on the original tree." 
Pears blackeiied. — Some fruits, decayed, black, and attacked by fungi, 
were sent to Dr. W. G. Smith for examination. They were received from 
Rev. H. W. Fletcher, Bicker Vicarage, Boston. 
Scientific Committee, July 17, 1900. 
Dr. Masters in the Chair, and two members present. 
Carnation-leaves injured. — Leaves were received from Scarborough 
upon which Mr. Douglas reported as follows : — 
" The three leaves seem to be scalded, but this might not have 
happened if the leaves had been healthy. They are not so. The weather 
has been unfavourable to Carnations in some places. These may have 
been badly cultivated. Probably they had too much water or insuflicient 
ventilation. With healthy plants and ample ventilation scalding does 
not take place. The eruption or raised process on the single leaf is 
similar to what occurs on Vine-leaves when the atmospherical conditions 
are bad — viz., too much moisture and too little ventilation. No plants 
suffer so much from insufficient ventilation as Carnations, and a 
moderately moist atmosphere is injurious. This may account for both 
the ailments in question." 
Apple-tree attacked by Caterpillars. — Specimens were received from 
Mr. Abbey, Avery Hill, Eltham, upon which Mr. McLachlan reports as 
follows : — 
" I only found one larva in the Apple shoots, and that appears to be 
some kind of Tortrix. It is often hard to name these things without 
seeing the insect they produce. Apple-trees just now are infested with 
larvae of various kinds, and not the least destructive is that of the winter 
moth, but I do not see it in the box. Hand-picking is all very well in its 
way, but I should strongly recommend spraying the trees, if not too large, 
with some of the insecticides recommended in the gardening papers. It 
