The following Treatise presents the sum of a course of Lectures, which, for six or eight years past, I have been in the habit of delivering to successive classes, on the subject of Intellectual Philosophy. One thing I may say in relation to this subject, without boasting. No class have yet passed through this course, without becoming deeply interested in the science of Mental Philosophy; and, in their judgment, receiving great benefit from the truths developed, as well as from the method of development which was adopted. Hence the desire has been very generally expressed by those who have...

The object of the following treatise is to furnish, not only for College classes, but especially for our Academies and High Schools a complete system of Mental Science. Two facts render the treatises in common use unadapted, particularly to the two purposes last named. Such treatises, in the first place, are too large for common use. Then, with hardly any exceptions, they treat of but one department of the mind, the Intellect. The object of the following treatise is to remedy both these defects-to furnish a work sufficiently ample for a clear elucidation of the whole subject, and, at the same...

The object of the following treatise is to furnish, not only for College classes, but especially for our Academies and High Schools a complete system of Mental Science. Two facts render the treatises in common use unadapted, particularly to the two purposes last named. Such treatises, in the first place, are too large for common use. Then, with hardly any exceptions, they treat of but one department of the mind, the Intellect. The object of the following treatise is to remedy both these defects-to furnish a work sufficiently ample for a clear elucidation of the whole subject, and, at the same...