WITH AN AUTOBIOGRAPHY OF THE AUTHOR, Third Edition. LONDON: LONGMAN, ORME, BROWN, GREEN, & LONGMANS, PATERNOSTER-ROW. 1839. 329. 189. c. 184. PREFACE. SOME few years ago Mr. Loudon wrote to me, in order to draw my attention to his Magazine of Natural History; and he added in his letter, that he would feel obliged to me for any communication that I might send to him from time to time at my convenience. I was preparing to set out for the Continent at the time that I received Mr. Loudon's letter. On my return home from Franconia, I did not forget his application relative to the Magazine of Natural History. I owe a debt of gratitude to Mr. Loudon, for the very kind manner in which he has always spoken of the Wanderings, and recommended that work to the public. I had learned, by mere chance, that a professor in King's College had been applying to |