Flowers and Their Friends

How flowers and insects came to need each other, explained to children by a teacher who refused to talk down — “it would be very stupid indeed to try to read a book written in Arabic,” she begins, so look up every word you don't know.

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Skin Cells: Glands

These glands are merely cells which take certain things from the sap and pour them out on the outside of the plant. Glands secrete their fluids inside the skin cells, and these fluids finally break through the outer wall of the skin cell and so get to the surface, or else they pass through stomata specially provided for them.

They sometimes cover the surface of the plant with a sticky substance, as is the case with young birch twigs.

Glands also secrete the gum or resin which covers up the winter buds and keeps out the rain, and which makes the young leaves of the cherry shine so.

plants are abundantly supplied with these protec-
plants are abundantly supplied with these protec-
see, the object is to
see, the object is to

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