Wounds in war : the mechanism of their production and their treatment . 264 WOUNDS IN WAR In still -rarer cases, when this has occurred, the plate ofbone corresponding to the aperture through which theportion of bullet entered has so completely recovered itslevel by its resiliency as to leave no trace of the entranceof the foreign body (fig. 71). The museum at Netley con-tains a specimen of each of these surgical curiosities ; but. Fig. 70. Gunshot fracture of skull; part of the bullet was found within the cranium,and part under the scalp, as shown here.—Netley Museum. such cases are not likel
Wounds in war : the mechanism of their production and their treatment . 264 WOUNDS IN WAR In still -rarer cases, when this has occurred, the plate ofbone corresponding to the aperture through which theportion of bullet entered has so completely recovered itslevel by its resiliency as to leave no trace of the entranceof the foreign body (fig. 71). The museum at Netley con-tains a specimen of each of these surgical curiosities ; but. Fig. 70. Gunshot fracture of skull; part of the bullet was found within the cranium,and part under the scalp, as shown here.—Netley Museum. such cases are not likely to result from the hard-mantledsmall-bore bullets. Grooving of the external table and diploe were fre-quently produced by the old leaden bullets striking tangen-tially ; this class of injury to the skull is equally probablewith the new bullet, and, as in other cases, the injury tothe inner table is likely to be of greater extent than thatof the outer. Depressed fractures of both tables are very common(fig. 72). They are usually the results of shell fragments, PENETRATION OE THE SKULL 265 or of small-arm bullets at low rates of velocity. Thedepression is usually cup or cone shaped, with fissuresextending from the edge of the cup to the centre of thedepression, dividing the plate of bone into two or moretriangular fragments. The comminution accompanyingthese fractures may be very severe, and fissures may
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