=Soil=, that part of the earth's crust into which plants send their
roots for food and water.

=Stamen=, that part of a flower which bears the pollen.

=Stigma=, the part of the pistil which receives the pollen.

=Stomata=, breathing pores in plants.

=Subsoil=, that part of the soil which lies beneath the soil that is
worked with the tillage tools.

=Sap root=, a main root that runs straight down into the soil.

=Tillage=, stirring the soil.

=Transpiration=, the giving off of water from plants.

=Tubercle=, a small nodular growth on the roots of plants.

=Under drainage=, drainage from below.

=Vitality of seeds=, the ability of seeds to grow.




INDEX