516 Appendix. 



Formula. 

 {For Winter Use only.) 



(1) Paraffin (White Rose) 1 gall. 



Soft Soap . • • lilb. 



Water .... . 10 galls. 



{Summer Use.) 



(2) Paraffin 4 pints. 



Soft Soap . . . lUb. 



Water . . . 10 galls. 



Preparation. 



The soap is dissolved in boiling water, and when still very hot (better 

 still just boiling) the paraffin is added and the whole churned by means 

 of a force pump into a creamy mass. 



The Solar Distillate oil is undoubtedly the best to obtain, but 

 excellent results have been obtained with Tea Rose and White Rose oils. 



Uses. 



For the destruction of mussel scale eggs in the winter, oyster-shell 

 bark louse and brown currant scale ; for aphis, etc., in summer. 

 No effect on insect eggs. 



Riley-Hubbard Formula. 



Formula. 



Paraffin . . . . . 2 galls. 



Boiling Water .... .1 gall. 



Soft Soap ... . . i lb. 



Preparation. 



Dissolve the soft soap in boiling water, and when still boiling hot pour 

 it into the paraffin and churn it into a creamy liquid. 



Dilute for use one part of this emulsion with from ten to fifty times 

 the bulk of water. 



Uses. 



For destruction of scale insects and aphides. 



Time of Application. 



The strong solution when the trees are dormant, the weaker in 

 summer. 



Paraffin Jelly. 



Formula. 



Paraffin 



5 galls. 



Soft Soap 8 lbs. 



