AGAIN has the grateful duty devolved on me of returning thanks to the Profession for the continued-and I hope I may say without egotism-unexampled patronage extended to the "Principles and Practice of Obstetrics." It is now but thirteen months since the book was first presented to the world, and my Publishers admonish me that a Third Edition is called for. To say that its reception is beyond my most sanguine hopes, and that I am deeply impressed with a sense of the obligation imposed by this prompt recognition of my labors, would be but the reiteration of a self-evident truth; and I may add, that both the pleasure and obligation are greatly enhanced by the fact that, in the short period which has clapsed since the work was issued from the Press, it has already been recommended as a Text-Book in nine of our medical colleges. What greater honor can an Author claim at the hands of his Peers-what higher incentive to future effort! These influences, if my life be spared, shall not be lost upon me. Again, also, I have most cordially to thank the Medical Press, here and abroad, for their continued commendatory and flattering notices.
This Edition has been carefully revised and enlarged; besides additions to the Text throughout the volume, it will be seen that a lecture on Phlegmasia Dolens has been incorporated.
NEW YORK, 86 Fifth Avenue, Dec. 1862.
