114 



that some of the fall sprays were repeated in spring. In most cases this 

 was done to check up on fall applications which showed an appreciably 

 higher percent of live scale than did oil emulsion made with a certain 

 90 viscosity paraffin oil, which we use as a standard because of the large 

 number of tests which have been made with it. In Table IX, viscosity 

 was ascertained by the Saybolt test. Good emulsions were obtained with 

 all the oils used. 



I 



