CONCRETE 



425 



(It should be noted that the two pieces four feet long and the 

 two pieces six feet long have an extra foot in length at each end 

 for the purpose of serving as a handle.) 



For a two-bag batch with the 1 : 214 : 5 mixture : 

 Two pieces one inch by eleven and one-half inches by two feet 

 (for the ends of the sand box). 



Fig. 213.— Tools used in making concrete on the farm, a, Rake; h, wheelbarrow; 

 c, wooden float; d, square-nosed shovel; e, round-nosed shovel; f, bucket; 

 g, water barrel; h, gravel screen; i, tamper. — U. S. Dept. of Agriculture. 



Two pieces one inch by eleven and one-half inches by two and 

 one-half feet (for the ends of the stone box). 



Two pieces one inch by eleven and one-half inches by four and 

 one-half feet (for the sides of the sand box). 



