tinents, I embraced every opportunity of forming a complete collection of the various birds portrayed in my work. Until this journey I had attached no value to a skin after the life which gave it lustre had departed: indeed, the sight of one gave me more pain than pleasure. Portions of my collections of skins I sent to my friends in Europe at different times, and in this manner I parted with those of some newly discovered species before I had named them, so careless have I hitherto been respecting "priority." While forming my collection, I have often been pleased to find that many species, which, twenty-five years ago, were scarce and rarely to be met with, are now comparatively abundant;—a circumstance which I attribute to the increase of cultivated land in the United States. I need scarcely add, that the specimens here alluded to have been minutely examined, for the purpose of rendering the specific descriptions as accurate as possible. And here I gladly embrace the opportunity offered of presenting my best thanks to Professor Jameson, for the kindness and liberality with which he has allowed me the free use of the splendid collection of birds in the museum of the University of Edinburgh. Of this privilege I have availed myself in comparing specimens in my own collection with others obtained both in the United States and in other parts of the world.
Ever anxious to please you, and lay before you the best efforts of my pencil, I carefully examined all my unpublished drawings before I departed from England, and since then I have made fresh representations of more than a hundred objects, which had been painted twenty years or more previously. On my latter rambles I have not only procured species not known before, but have also succeeded in obtaining some of those of
