EXERCISE No. 50 

 COMPOSITION OF SOIL 



Object: To learn the composition of different kinds of 

 soil. 



Material : A compound microscope, samples of clay, silt, 

 loam, muck, and sand. 



Method : Observe each of the different kinds of soil under 

 the microscope and note its composition as to (a) size, 

 (b) kind of material, (c) most common form of particles, and 

 (d) color. 



Conclusion: Make drawings of the comparative sizes 

 of the different soils examined... 



EXERCISE No. 51 



TESTING SOILS 



Object: To see if the soils in the community need lime. 



Material : Soil auger, red and blue litmus paper, muriatic 

 acid, and fields in the community. 



Method: Make the first test on the school lot. Take 

 the top soil, and the soil six inches, one foot, two feet, and 

 four feet deep. The test is made by taking some of the soil 

 from each depth. A handful is enough for the test, which 



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