. Surgery, its principles and practice . rts must be made tofind and extract a penetrat-ing missile and the extrane-ous matter which may havebeen carried with it, asotherwise empyema or pyo-hemo-pneumothorax as adistressing complication willsurely intervene.^ Suture of heart wounds may be attempted, but themoment of its urgency is usually so unfavorable to its successful accom-plishment, to say nothing of the very dubious prospects of the ultimateresults looked for, that one is rarely warranted in undertaking such anunavailing expenditure of time so valuable to others, who offer a surerrespons
. Surgery, its principles and practice . rts must be made tofind and extract a penetrat-ing missile and the extrane-ous matter which may havebeen carried with it, asotherwise empyema or pyo-hemo-pneumothorax as adistressing complication willsurely intervene.^ Suture of heart wounds may be attempted, but themoment of its urgency is usually so unfavorable to its successful accom-plishment, to say nothing of the very dubious prospects of the ultimateresults looked for, that one is rarely warranted in undertaking such anunavailing expenditure of time so valuable to others, who offer a surerresponse to emergency relief. Injuries of the Eye.—Instances of rupture of the iris are on record,produced, it is supposed, by the sudden and forcible contraction of themuscles of the eye that the shock of a wound in the orbital vicinity oc-casions. These singular injuries usually terminate in cataracts.^® Theeye may sustain other direct injuries which require enucleation. Injuries of the Ear.—The ear is subject to grave accidents pecuhar. Fig. 529.—Blind Wound, Right Side op Face withFractures of Superior Maxilla and Palate. SURGICAL CONDITIONS OF NAVAL WARFARE. 1053 to the service. This dehcate organ suffers more damage from meregun-fire tlian any other part of the body, tlie vibrations being conductedto the labyrinth both by way of the outer and middle ear and through thehard bony parts of the skull, causing respectively the curable rupturedmembrana tympani and the irreparable gun-deafness produced by re-peated injury of the delicate nen^e terminals in the internal ear.^^ Ourimmediate concern is with the former. This injury is effected bj^ ex-plosion gas (gas produced by the explosion of an enemys shell close by)and vibrations of air consequent upon firing the ships guns.^^^ Thoughoften reported, it is believed to be much more common than records in-dicate, as most probably there havebeen many cases attended with rup-ture, among those killed on the spotor who died soon after
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