We shall see how the industry and circumspection of the Argus-eyed Hunter, as Abernethy used to call him, enabled him to unfold a legend in nature, which he had neither length of days, sufficient opportunity, nor perhaps aptitude, wholly to decipher; and how far it was developed into practical usefulness by the penetrative sagacity and happy genius of Abernethy; which, like light in darkness, guides and sustains immediate research, and animates and encourages onward inquiry. To appreciate Abernethy, however, it is necessary that the public should have correct views at _least_ of the _general_ nature and objects of Medical Science. The public have not only a very real interest in acquiring a sound common-sense view of the objects of medicine and surgery, but a far deeper interest than it is possible for any one medical man to have, merely as such, or all medical men put together. This may, for the moment, appear startling to those who have not been compelled to consider the subject; but the reader may glean even from this volume, that so long as life or health, or even money, has value, the remark is strictly true. From all sides mankind have hitherto imbibed little but error. They have been taught or induced to believe that the only objects of medicine and surgery are to prevent or relieve diseases and accidents by the astute employment of drugs, or by certain adroit manipulatory or mechanical proceedings, and _par excellence_ by "operations." Now here is a great mistake—an idea so far from true, that nothing can more delusively define, or more entirely conceal, the higher objects of the science. The direct contrary of the proposition would be nearer the truth. It would be _more_ correct to say that the object was to relieve diseases and accidents by removing all interferences with the reparative powers of nature; and that this was accomplished more perfectly in proportion as we were enabled to _dispense_ with the employment of drugs, or the performance of operations. The making the lame to walk, the blind to see, and the deaf to hear, were chosen amongst the appropriate symbols of a Divine Mission; and we need scarcely observe, that, in the restricted sphere of human capacity, this is a portion of the mission of every conscientious surgeon.