Productive farming . Fig. 3a.—Growing plants absorb moisture from the soil. Two iiower-potan-ith equal amounts of the same kind of soil are set in lard pails having water up tothe line shown. Corn is growing only in the left one. (Agricultural Education.) ? Fig. 36.—^Evaporation of water from leaves. The condensed moisture showsin the upper part of the glass inverted over the growing plant. (AgriculturalEducation.) Exercise.—Skin of Leaf.—Break a leaf partly in twoin such a manner as to peel the surface away from the innercells. This surface layer of cells is clear and contains nochlorophyl, a
Productive farming . Fig. 3a.—Growing plants absorb moisture from the soil. Two iiower-potan-ith equal amounts of the same kind of soil are set in lard pails having water up tothe line shown. Corn is growing only in the left one. (Agricultural Education.) ? Fig. 36.—^Evaporation of water from leaves. The condensed moisture showsin the upper part of the glass inverted over the growing plant. (AgriculturalEducation.) Exercise.—Skin of Leaf.—Break a leaf partly in twoin such a manner as to peel the surface away from the innercells. This surface layer of cells is clear and contains nochlorophyl, as shown in Fig. 4. The outer layer of cells isso thin and clear that sunlight may pass through and reachthe green cells of the inner part of the leaf. Air Openings.—^Air may enter the leaf through smallopenings, chiefly on the imder side. One of these openingsis marked S in Fig. 4. These are called stomates, the wordmeaning mouths. There are great numbers of the sto-mates on the under surface of leaves. T
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Keywords: ., bookcentury1900, bookdecade1910, bookidcu, booksubjectagriculture
