been to produce a trustworthy manual, which may be of service as a supplement to the grammars ordinarily used by learners. Had I been writing it now for the first time, I should probably have endeavoured to state the rules more succinctly: but my first edition was published at a time when no satisfactory treatment of the subject existed in English, and tolerably full explanations appeared to be needful. If nevertheless some points should still seem to have been dwelt on too diffusely or repeatedly,