WHITEWASHING AND SPRAYING 



SIS 



— whitewash so badly streaked as to be most unsightly, and at 

 the slightest touch brushing off the woodwork. In fact, fre- 

 quently it does not remain long enough to be of any real value. 

 To execute a good, permanent job — a job that will not only 

 clean and disinfect the building, but improve its appearance as 

 well — one must regard the task much the same as painting. First 

 of all, the walls, sills, and all projections that have accumulated 

 large quantities of dust should be carefully brushed clean with 



{Courtesy U. S. Dep't Agriculture) 

 Fig. 317. — ^Spraying outfit for disinfecting and whitewashing. 



a stiff broom; otherwise the whitewash will simply form a coat- 

 ing or deposit over the dust and will subsequently curl up and 

 fall off, thus exposing the original dirt. Moreover, this dust is 

 frequently the refuge and abiding place for disease germs and 

 vermin and should be removed, not merely put out of sight 

 temporarily. Whitewash is a good exterminator if allowed to 

 come in contact with vermin, and will penetrate cracks and cre- 

 vices which are in a horizontal position, such as those on dropping 



