About the 5th ring of the trachea the caliber of this organ was obstructed by a cylindric alimentary bolus about six inches long, extending almost to the bronchial division.

Ashhurst shows a fibrinous cast, similar to that found in croup, caused by a foreign body removed by Wharton, together with a shawl-pin, from a patient at the Children's Hospital seven hours after the performance of tracheotomy.

Search for the foreign body at the time of the operation was prevented by profuse hemorrhage.
The ordinary instances of foreign bodies in the larynx and trachea are so common that they will not be mentioned here.

Their variety is innumerable and it is quite possible for more than two to be in the same location simultaneously.

In his treatise on this subject Gross says that he has seen two, three, and even four substances simultaneously or successively penetrate the same location.