198 



PAINT TECHNOLOGY AND TESTS 

 NORTH DAKOTA TESTS 



Formula No. 13, Panel 

 19, on 1907 Fence 



10. Formula No. 25, Section 

 37, on 1907 Fence. Good 

 Condition. Surface 

 Checking Only 



Formula No. 19, Panel 28. 

 Broad, Deep Checking on 

 Corroded White Lead on 

 1907 Fence 



11. Formula No. 8, Panel 12, 

 on 1907 Fence 



9. Formula No. 24, Panel 36, 

 on 1907 Fence. Good 

 Condition. Surface 

 Checking Only 



12. Formula No. 10, Panel 

 15, on 1907 Fence 



