494 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



In regard to treatment, I can add nothing to the American report 

 abstracted by Dr. Cooke. The disease is favoured by damp conditions, we 

 could produce it by watering heavily and covering plants with a bell-jar ; 

 these conditions exist in forcing Violets under glass. Drier conditions 

 and ventilation produce more healthy leaves, yet the disease was never 

 quite absent from our pots. It has been suggested recently in the 

 Gardeners'' Chronicle that overfeeding is a cause of Violet disease ; we 

 believe this is so, yet we had it going on in a poor soil, wdth no manures 

 added. We could not test the effects of sprapng, because only a few 

 plants were available, and a longer time would be required to see the 

 effects. 



