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 3 to 6 Ibs. 



Sulphur 3 Ibs. 



Salt 3 Ibs. 



Caustic Soda . . . . . 1 Ib. 



Water 10 galls. 



PREPARATION. 



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 INSECTS. 



ARSENICAL WASHES. 



A. ARSENATE OF LEAD. C. CALCIUM ARSENATE. 



B. PARIS GREEN. D. LONDON PURPLE. 



E. ARSENITE OF SODA. 



A. Arsenate of Lead. 



FORMULAE. 



(1) Arsenate of Soda (pure or crystalline) ... 3^ oz. 

 Acetate of Lead . . . . . . 7 oz. 



Water 10 galls. 



(2) Arsenate of Soda (dry) 2 oz. 



Acetate of Lead . . . . . . 7 OK. 



Water . 10 galls. 



PREPARATION. 



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

 of treacle. 



