LAST DAY OF SCHOOL
"Mary, fill that glass jar three parts full of water. We will now drop into the water some of this soil and mix it well. What do you think will happen when we stop stirring?"
"The sand will settle at the bottom of the jar," was the ready reply from a bright child.
"The coarse loam will settle next," was a second answer; and then came the statement that the finest loam would remain on top.
We waited a few days and were rewarded by seeing the soil in distinct layers in the jar.
"Now we will try to discover which kind will produce the best plant. How shall we determine this?"
"Plant some seeds," was the immediate suggestion.
One pot was filled with the original soil, and one each with the kinds of soil that we had gotten from our experiment. A seed bean was placed in each pot, and all pots subjected to the same conditions and watched by anxious eyes.