Mr. MUD'S and the Reverend HENRY DUNCAN have published two
volumes upon Summer. The Summer of Mr. DUNCAN forms part of his Sacred Philosophy of the Seasons; and is distinguished by the same skilful compilation, and the same intermixture of in- teresting facts with religious hortative, as we noted on the appear- ance of the two preceding volumes. Summer, or the Causes, Ap- pearances, and Effects of the Grand Nuptials of Nature, by Ro- BERT MUDIE, is more general and methodical in its arrangement, dealing with masses rather than with details, with genera than with species ; so that, whilst his view of Summer is niore philo- sophical and comprehensive than that of Mr. DUNCAN, it is less anccdotical.