their minute, but highly interesting structure; whether we walk forth in the early spring, when the ruby tips of the hawthorn-bush give the first sign of its approaching vegetaion, or a little after, when the violet welcomes us with its scent, and the primrose with its beauty; whether we contemplate in succession all the profuse flowery treasures of the summer, or the more hidden secrets of Nature at the season when fruits and seeds are forming; the most familiar objects, like old friends, will always afford us something to study and to admire in their characters, while new discoveries will awaken a train of new ideas. The yellow blossoms of the morning, that fold up their delicate leaves as the day advances: others that court and sustain the full blaze of noon; and the pale night-scented tribe, which expand, and diffuse their very sweet fragrance, towards evening, will all please in their
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PREFACE.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/26/An_introduction_to_physiological_and_systematical_botany_%281st_edition%29.djvu/page28-1024px-An_introduction_to_physiological_and_systematical_botany_%281st_edition%29.djvu.jpg)