So I shall now turn to the subject of dragon-flies.
Here we must again be very brief.

References to dragon-flies are common throughout English poetry, but the references signify little more than a mere colourless mention of the passing of the insect.

However, it so happens that the finest modern lines of pure description written about any insect, are about dragon-flies.

And they also happen to be by Tennyson.
Naturalists and men of science have greatly praised these lines, because of their truth to nature and the accuracy of observation which they show.
You will find them in the poem entitled "The Two Voices." To-day I saw the dragon-fly Come from the wells where he did lie.
An inner impulse rent the veil Of his old husk; from head to tail Came out clear plates of sapphire mail.
He dried his wings; like gauze they grew; Thro' crofts and pastures wet with dew A living rush of light he flew.
There are very few real poems, however, upon the dragon-fly in English, and considering the extraordinary beauty and grace of the insect, this may appear strange to you.

But I think that you can explain the strangeness at a later time.