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a quarter of an hour, after which they should be well 

 rinsed in a tub of clean water. They should be 

 turned bottom upwards until the wet is drained from 

 them ; and after being potted they should be kept in 

 a strong moist heat. Where it is requisite to dress 

 large plants, great care should be taken to drain the 

 water from them thoroughly, and not to wash too near 

 the hearts. (Gard, Chron, 1843, 7.) 



Mr. Barnes utterly abjures all medicated com- 

 pounds for the destruction of the scale insects, main- 

 taining that the best remedy is to restore the plants 

 to robust growth. To aid the expulsion of the in- 

 sects, however, he recommends that, instead of pure 

 water, clear soot water and weak ammonia water, 

 syringed not only over the pit but over the plants, 

 will be found of great service. 



A most effectual remedy is to brush the cocci over 

 thoroughly twice, after an interval of a day, with 

 spirit of turpentine. 



Now all the foregoing recipes offer very powerful 

 agents to work with, and the process, moreover is a 

 rather tedious one. We strongly suspect that it is 

 the soft soap which effects the cleansing. This is 

 known to be destructive to the common apple and 

 pear-tree scale ; and it is by no means improbable 

 that it suffocates them, by casting a sort of Mackin- 

 tosh wrapper over them, impervious, in a great de- 

 gree, to the atmosphere. It appears that Mr. 



