It will be adviseable to commence our incision through the integuments, from the under lip to the top of the sternum, passing quite through the former part; another incision is to follow the inferior margin of the lower jaw; then the triangular portions thus marked out are to be separated from the parts beneath; the head should be bent back in order to put the soft parts that are to come under the knife upon the stretch. The jaw may now be divided at its symphysis, so as to separate it into two lateral portions, which may be turned aside by dividing with a scalpel all the parts which adhere to its internal surface. The object of this arrangement is to bring into view the cavities of the mouth, œsophagus, larynx, and trachea, the condition of which is so frequently connected with the death of the child that they ought never to escape examination. The position of the tongue should be noticed, and the contents of the mouth, if any, ought to be recorded, for cases have occurred in which extraneous matters, such as mud, sand, feathers, &c. have been accidentally, or criminally introduced. It will at the same time be extremely proper to ascertain the state of the nasal cavities, and to observe the quantity and consistence of the mucus in these parts, as well as in the fauces. The tongue may now be gradually pulled downwards, until the isthmus of the fauces is stretched, when, by cutting through the arch of the palate, the whole of the pharynx will be exposed; the dissection should then be extended in order to bring the commencement of the œsophagus into view, which should be carefully examined. The position of the epiglottis is the next object of inspection; and lastly, the interior of the larynx and trachea may be disclosed by making an incision through the thyroid, crycoid, and tracheal cartilages, at their anterior parts. Ligatures should be placed on the lower parts of the œsophagus and trachea.