512 



Appendix. 



the caustic soda ; let this boil for some time, and then add the dissolved 

 soft soap and full quantity of water. 



LIME-SULPHUR-SODA-SALT WASH. 



Formula. 



Quicklime 

 Sulphur 

 Salt . 



Caustic Soda 

 Water 



Pbepakation. 



Mix the soda and lime together and slake with some hot water, in 

 which the sulphur has been incorporated, and then bring up to the full 

 10 gallons. This mixture is also self-boiling. 



Uses. 

 For destroying the pear-leaf blister mite and as a scalicide. 



Application. 



On dormant wood only. In case of the pear, spraying must cease as 

 soon as the bud scales are fully opened. A heavy spraying is best. 



AESENICAL WASHES FOE MANDIBULATE mSECTS. 

 ARSENICAL WASHES. 



A. Arsenate op Lead. 



B. Paeis Green. 



C. Calcium Arsenate. 



D. London Purple. 



E. Aesenite op Soda. 

 A. Arsenate of Lead. 



FOEMDL*. 



(1) Arsenate of Soda (pure or crystalline) 

 Acetate of Lead 

 Water 



(2) Arsenate of Soda (dry) 

 Acetate of Lead 

 Water 



3^ oz. 

 7 oz. 

 10 galls. 



2 oz. 

 7 oz. 

 10 galls. 



Preparation. 



Dissolve both together in the water and well stir and then add 1 lb. 

 of treacle. 



