The Editor had proposed to form an Index so as to render the work more readily accessible; but, in that desire, he has been overruled by the publishers, who think that the exceed ingly full Analytical Table of Contents following the Preface, and naming the pages where each position is to be found, are sufficient, without increasing the bulk of the work, and, con sequently, the expense. The Editor hopes that the student who may examine his numerous notes will not think that he has wasted time.