I must pray the readers of the following Lectures to remember that the duty at present laid on me at Oxford is of an exceptionally complex character. Directly, it is to awaken the interest of my pupils in a study which they have hitherto found unattractive, and imagined to be useless; but more imperatively, it is to define the principles by which the study itself should be guided; and to vindicate their security against the doubts with which frequent discussion has lately incumbered a subject which all think themselves competent to discuss. The possibility of such vindication is, of.
