76 



LABORATORY MANUAL 



by weight, which the sand is capable of holding. What 

 per cent of the weight of the sand is the weight of the 

 water ? 



Eepeat the above experiment for each of the soils: 

 clay, loam, and leaf -mold, or any combination of soils 

 suggested by the instructor. 



Is the water capacity the same for all soils?' Which 

 holds the most? Which the least? 



Record results as follows : 



Exercise 46. Soil Solutions. 



Object: To determine whether water in passing 

 through the soil dissolves mineral substances. 



Apparatus 



Slips of Wandering Jew 



Evaporating dishes 

 Bunsen burner 

 Well water 

 Rain water 



Flasks 

 Ring stand 



Directions: A. Place 50 c.c. of well water in one 

 evaporating dish and the same amount of rain water, 



