52 



Missouri Agricultural Report. 



6th. Make field and laboratory tests upon paints and pre- 

 servatives for steel highway work. It is a feature of maintenance 

 which has been neglected. Well directed attention to this ques- 

 tion will mean several years added to the life of steel bridges. 



Respectfully submitted, 



Curtis Hill, 



State Highway Engineer. 



A LAWRENCE COUNTY ROAD. 



