These lectures, of which this Reprint is an exact reproduction, have not before been generally accessible, a few copies only having been printed in 1840 for private distribution. They have now been made available for public circulation in their original form by kind permission of Mrs. and Mr. E. J. Strachey, M.P., the owners of the copyright. The lectures were part of a course delivered at Oxford in 1829 and, as explained in the Preface, immediately preceded the famous lectures on "The Cost of Obtaining Money", which have been reprinted as No. 5 of this Series of Reprints.