208 EYE SPY 
sands of singular devices, that the insect shall 
bring to each the pollen of another flower of the 
same species, and thus effect what is known as 
cross-fertilization. 
We must then look at all flowers as expres- 
sions of welcome to some insect day-flowering 
blossoms mostly to bees and butterflies, and night- 
bloomers to moths. And not only expressions of 
welcome, but each with some perfect little plan of 
its own to make this insect guest the bearer of its 
pollen to the stigma of another flower of the 
same species. And how endless are the plans 
and devices to insure this beautiful scheme! 
Some flowers make it certain by keeping the stig- 
ma closed tight until all its pollen is shed ; others 
place the anther so far away from the stigma as 
to make pollen contact impossible; others actu- 
ally imprison these pollen -bringing insects until 
they can send them away with fresh pollen all 
over their bodies. 
Take almost any flower we chance to meet, and 
it will show us a mystery of form which the insect 
alone can explain. 
Here is one, growing just outside my door a 
blossom " known " even to every child, and cer- 
tainly to every reader of the " Round Table " 
the pretty bluets, or Houstonia, whose galaxy of 
white or blue stars tints whole spring meadows 
like a light snowfall. We have " known " it all 
