mportant factors of gardening--food. The others are cultivation, moisture and temperature. "Rich" in the gardener's vocabulary means full of plant food; more than that--and this is a point of vital importance--it means full of plant food ready to be used at once, all prepared and spread out on the garden table, or rather in it, where growing things can at once make use of it; or what we term, in one word, "available" plant food. Practically no soils in long- inhabited communities remain naturally rich enough to produce big crops. They are made rich, or kept rich, in two ways; first, by cultivation, which helps to change the raw plant food stored in the soil into available forms; and second, by manuring or adding plant food to the soil from outside sources.
"Sandy" in the sense here used, means a soil containing enough particles of sand so that water will pass through it without leaving it pasty and sticky a few days after a rain; "light" enough, as it is called, so that a handful, under ordinary condit