The following admirable paper on Cancer, by Dr. Walshe, the distinguished author of the work, on the Physical Diagnosis of Diseases of the Lungs, is republished from the Cyclopedia of Practical Surgery, The expensive character of that work not allowing the extensive circulation in this country which the article on Cancer deserves, it was thought desirable to print it in a separate volume, and the Editor was called upon to supervise the sheets as they passed through the press. By referring to the Cyclopedia, it will be perceived that in treating of Cancer of Particular Parts, the author in some places has not entirely completed his subject, that he might not interfere with what would appear in another part of the work, hereafter to be published, under other heads, to which he refers his readers. The American Editor has therefore confined himself to making those additions, chiefly in the surgical operations required, which would render the work more acceptable to the practical surgeon, an account of the operations being added wherever they have been omitted. This task perhaps has been but very imperfectly performed, as it was necessarily done during the short time while the work was passing through the press, and among various other occupations.
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