118 



REPORT OF OFFICE OF EXPERIMENT STATIONS. 



r^m^mimmimmm^m 



Fig. 1. — Tanks for soil investigation at Florida station — section. The tanks arc of heavy 

 galvanized iron, 5 feet 3i inches in diameter, with a maximum depth of 4J feet, painted 

 within and without, and a surface area of =j^ acre. 



Fig. 2. — Tanks for soil investigation at Florida station — general plan. 



