Sul. 23, U. S. Dept. of Agriculture. 
Plate IX. 
Fig. 1 .—Experimental Road at Chevy Chase, Md. 
Finished pavement in service. 
Fig. 2.— Grout-Filled Brick Pavement, Having Longitudinal Joints in Center 
and Occasional Transverse Joints Filled with Soft Filler. 
Unsightly appearance at right caused by widening roadway. 
