Bui. 246, U. S. Dept. of Agriculture. 



Plate VIII. 



$9iki 



21 N 













- 



\C/r^A 



j] .-i\ 



vWm 





\^ 



^if 









g^ 







'Jjfi&t 







J MW^ 1 







■I 



' -'. : *3^H3 



i^^hB 









Fig. 1.— Finished Brick Pavement Protected by Sand Covering. 



Fig. 2.— Showing Properly Filled Grout Joints. 

 EXPERIMENTAL ROAD AT CHEVY CHASE, MD. 



