Rural School Leaflet. 



765 



soil; and if humus, we have a muck. A loam is a mixture of sand, silt, 

 and clay and a little humus. A sandy loam contains more sand than clay, 

 a clay loam more clay than sand, and a gravelly loam is a loam con- 

 taining a ver}^ noticeable amount of gravel. As far as possible have 

 the pupils bring in different samples of the above soils. Discuss with 

 them the way in which soils are adapted to certain crops. 



Fig. 75. Entrance to Ithaca school-garden 



Experiment II 



Capillarity of Soil 



By O. S. Morgan 

 When 3^ou plant seeds, either in the window garden, the outdoor gar- 

 den, or the field, you firm or pack the soil about the seeds. Almost all 

 seed-planters have some provision for firming the soil about the seeds. 

 Why? 



First Lesson. 



Purpose. To determine the effect upon the germination of seeds of 

 firming the soil about them. 



Materials. Two tin cans, seeds, and soil. 



