262 



SOILS AND FERTILIZERS 



Crucible Tongs. 



Pkg. Filter Paper. 



Test Tube Clamp. 



Evaporator. 



Stirring Rod. 

 3 Beakers. 

 6 Test Tubes, 

 i Test Tube Stand, 

 i Funnel, 

 i Mortar and Pestle. 



2 Bottles. 

 Large Cylinder. 

 Sand Bath. 

 Hessian Crucible. 

 Wooden Stand. 

 Tripod. 



Ring Stand and 3 Rings. 

 Single Clamp. 



Burner and 2Ft. RubberTubing 

 Brush. 



The student should plan to make judicious use of his time while 

 in the laboratory. 



Experiment No. i. 



Determination of the Hydroscopic Moisture of Soils. 

 Weigh in grams to the second decimal place an aluminum dish 



Fig. 37. Apparatus for Determining Moisture Content of Soils. 

 or tray. Place about ten grams of air dry soil in the dish and 

 weigh again. Then place the dish containing the soil in the water 



