October 13, 1881. ] 
JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
337 
Such is my experience with the linseed oil for killing scale on 
trees. No doubt but it will kill the scale, but what of the trees 1 
In this case the operation was carefully performed, and no more 
oil was put on the tree than in my opinion was required to kill 
the scale—only a thin coating, and the buds not painted, so that 
the work was done according to the quotation from a former 
member of the Cottaye Gardener fourteen years ago. When the 
idea of painting with oil occurred I am unable to say, or by 
whom ; but it seems to have entered the minds of not a few, been 
tried, and given up, and again revived as something new. As 
in the case of other ideas, my advice would be to all who may 
think of trying it is that given by Punch to those about to marry, 
“ Don’t.”— Alex. Shearer. 
Ten years ago I painted a large Marie Louise Pear tree with 
linseed oil procured from our painter’s shop, rubbing it in well to 
the bark but avoiding the buds. It completely destroyed the 
scale and did not do the least harm to the tree, which is still in 
Fig. 55.—Calceolaria pavonii. 
fine health. Many years ago, when at Drumlanrig under Mr. 
McIntosh, I assisted to paint a wall of Pears and Plums with 
spirit of tar slightly diluted, painting buds as well as bark. It 
killed the scale effectually and every bud as well, and a good 
portion of the spurs ; but the older wood broke freely at mid¬ 
summer, and I never saw finer foliage on trees. They after¬ 
wards grew well.—J. Simpson, Wortley. 
CALCEOLARIA PAVONII. 
As evidence of the value of this Calceolaria for the autumn 
decoration of the conservatory, we print the following extract 
from a letter received from Messrs. James Dickson & Sons, 
Newton Nurseries, Chester “ The enclosed flowers of Calceolaria 
Pavonii is a lateral spray, the main spikes being upwards of 2 feet 
long. The plant is now finely in flower, and will remain for some 
time. It is 7 feet high, 7 feet in diameter, and growing in a 
12 -inch pot. It is a grand plant for conservatory decoration. 
The small flower sent is Calceolaria bicolor, a fine species for 
autumn blooming in the conservatory.” 
Such a plant as the one referred to is seldom seen, and must 
indeed be “ grand.” The flowers are large, smooth, round, and 
of a clear yet soft yellow colour that is highly pleasing. The 
leaves are also very distinct by their broad wiDged petioles ; 
