Excerpt from On the Undulatory Theory of Optics: Designed for the Use of Students in the University This Treatise on the Undulatory Theory of Optics was first printed in the year 1831, as the last Essay in the Second Edition of a series of "Mathematical Tracts;" and was subsequently reprinted, occupying a similar place, in successive editions of that work. At the suggestion of the Publisher, it has now, with my approval, been printed in a separate form. Its arrangement and details are however the same, without material alteration, as in the Fourth Edition of the "Mathematical Tracts." I am happy to state that the work has been passed through the press under the superintendence of Robert Morton, Esq., B.A. of St Peter's College. Every security is thus given for the general accuracy of the publication. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.