You have been a child, reader, and you would, perhaps, be very happy to be one still. It is quite certain that you have not, more than once (and for my part, I have passed whole days, the best employed of my life, at it) followed from thicket to thicket, by the side of running water, on a sunny day, a beautiful green or blue dragon-fly, breaking its flight in abrupt angles, and kissing the tips of all the branches.