NORTH DAKOTA PAINT TESTS 

 NORTH DAKOTA TESTS 



199 



13. Panel No. 34, Formula 

 23, on 1907 Fence. Deep 

 Checking on Corroded 

 White Lead 



16. Test No. 2, 1906 Fence. 

 Sublimed White Lead 



14. Test No. 13 on 1906 

 Fence. White Spots 

 Show Paint Left on 

 Wood. Balance of Paint 

 Split and Disintegrated 

 from Surface 



17. Cracks in Test No. 15 on 

 1908 Fence 



15. Test No. 6 on 1906 Fence. 

 Surface Checking Only 



18. Effect of Cracking on 

 Hard Pine, Causing Split- 

 ting of Painting Coating 



