Zinnias are popular Summer and Autumn flowers.
plants. The light given out by such
strange natural lanterns is never bril-
liant, though it is sometimes bright
enough to enable one to read a printed
page in a darkened room.
Phosphorescence is, however, by no
means confined to very lowly forms of
plant life.
SPLASHES OF LIGHT.
Passing now to flowering plants, the
first subject to he recorded as luminous
was the ordinary garden nasturtium. As
far back as 1762, Christiana Linne, the
daughter of the great Swedish naturalist,
walking in her father’s garden one sultry
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