Bui. 462, U. S. Dept. of Agriculture. 



Plate I. 



Fig. 1.— Cross Section of Soil Formation in Subirrigated Section, Sanford, 

 Fla.: A, Light Topsoil; B, Hardpan; C, Water. 



•(.■.:■.:■ . . 



ij4r>*- 



Fig. 2.— Water-Tight Main and Stop-Box Connection to Subirrigation 

 Laterals, Sanford, Fla. 



