NORTH DAKOTA PAINT TESTS 



189 



eliminated from the detailed inspection, only general observations 

 of these tests being made. These general observations, however, 

 showed that paints Nos. 6 and 8 on the 1906 fence, and paints 

 Nos. 8, 10, and 13 on the 1907 fence, proved the most satisfactory 

 on the western exposure. 1 



Peculiar Crystallization Effect on Section 41. New Special Fence Paint 

 Applied During Cold Weather 



" Ochre was tried out as a priming coat on several formulas, 

 but it was found to be most unsatisfactory, affecting the subse- 

 quent coats of paint and causing early failure, as evidenced by 

 broad checking, discoloration, and general bad condition. These 



1 These formulas were the same as those respectively numbered on the 

 Atlantic City and Pittsburg fences. 



