clxXVlii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



distance of eight yards separating each tree from the next. Tree A 

 was dressed with 1 lb. of soot on April 1, May 1, June 1 and 15, 

 July 1 and 15, August 1 and 15. Tree C was, on the same 

 dates, dressed with 2| oz. of sulphate of ammonia. The dressing 

 was scattered on the ground within compass of the spread of the 

 tree's branches, and the ground was then immediately raked 

 over hardly, so as to stir the surface. Tree B was undressed,, 

 but similarly raked on each occasion. The fruit was gathered 

 on September 21, and on examination on October 12 it was 

 found that the produce of tree C was very slightly the highest 

 coloured, no difference whatever being apparent between the 

 produce of A and B. It was decided to continue this experiment 

 next year, 1897. 



Scientific Committee, October 27, 189G. 



Dr. M. T. Masters, F.R.S., in the Chair, and five members 

 present. 



Neiu Carnation Disease. — Mr. Douglas exhibited specimens 

 of Carnation plants badly attacked by a species of bacterium, 

 giving a silvery appearance to the leaves. It had previously 

 proved to be very destructive in America, and it is probable that 

 it will now be so here. If the leaves are cut away when first 

 attacked the disease may be arrested, but the only remedy if it 

 be more severe is to burn the plants. The fungus attacks the 

 middle of the leaf, and then spreads both ways. 



Chrysanthemum Malformed. — Mr. Jenkins, of Hampton, sent 

 a specimen of 1 Madame Desgranges ' in which the white ray 

 florets were almost entirely suppressed. The flowers sent were 

 borne by one plant only, which was growing in the same pot 

 with another of the same name ; but while all the flowers on the 

 one plant were malformed, all on the other were very good. No 

 disease being apparent, it appeared that the latter plant had 

 withdrawn the nourishment from the soil at the expense of the 

 former, which was consequently starved. 



Primula obconica cross. — Dr. Masters exhibited a truss and 

 leaf of a plant raised by himself by crossing P. obconica with 

 J?, sinensis (wild form). The offspring, beyond a slight decrease 



