If we could understand the sense of these words, we should doubtless discover the expression of the sensations of this delightful songster. It is true that the nightingales of all countries, the south as well as the north, appear to sing in the same manner; there is, however, as has been already observed, so great a difference in the degree of perfection, that we cannot help acknowledging that one has a great superiority over another. On points of beauty, however, where the senses are the judges, each has his peculiar taste. If one nightingale has the talent of dwelling agreeably on his notes, another utters his with peculiar brilliancy, a third lengthens out his strain in a particular manner, and a fourth excels in the silveriness of his voice. All four may excel in their style, and each will find his admirer; and, truly, it is very difficult to decide which merits the palm of victory. There are, however, individuals so very superior as to unite all the beauties of power and melody; these are generally birds of the first breed, which, having been hatched with the necessary powers, in a district well peopled with nightingales, appropriate what is most striking in the song of each, whence results this perfect compound, so worthy of our admiration. As the return of the males in spring always precedes that of the females by seven or eight days, they are constantly heard to sing before and after midnight, in order to attract their companions on their journey during the fine nights. If their wishes are accomplished they then keep silence during the night, and salute the dawn with their first accents, which are continued through the day. Some persist in their first season in singing before and after midnight, whence they have obtained the name of nocturnal nightingales; but they cannot be distinguished till after some time, when they are established in their district, and have the society of their females. After repeated experiments for many successive years, I think I am authorised in affirming that the nocturnal and diurnal nightingales form distinct varieties, which propagate regularly: for if a young bird is taken from the nest of a night singer, he, in his turn, will sing at the same hours as his father, not the first year, but certainly in the following[81]; while, on the other hand, the young of a day nightingale will never sing in the night, even when it is surrounded by nocturnal nightingales. I have also remarked that the night singers prefer mountainous countries, and even mountains themselves, whilst the others prefer plains, valleys, and the neighbourhood of water. I will also venture to affirm that all the night singers found in the plains have strayed from the mountains; thus in my neighbourhood, inclosed in the first chains of the mountains of