Wounds of the head (f. 84 c) occur with or without fracture of the cranium, but always require careful examination and exact diagnosis. The wound is to be carefully explored with the finger, and, if necessary, should be enlarged for this purpose. Large, but simple, wounds of the scalp should be stitched with silk in three or four places, leaving the most dependent angle open for escape of the discharges, and in this opening should be inserted a tent (tuellus), to facilitate drainage. The wound is then sprinkled with the pulvis rubeus and covered with a plantain or other leaf. On the ninth to the eleventh day, if the wound seems practically healed, the stitches are to be removed and the cure completed with simple dressings.

The signs and symptoms of fracture of the cranium are: Loss of appetite and failure of digestion, insomnia, difficulty in micturition, constipation, a febrile dyscrasia, difficulty in cracking nuts or crusts of bread with the jaws, or severe pain when a string is attached to the teeth and pulled sharply. If the meninges are injured we have further: headache, a slow and irregular but increasing fever, alternating with chills, distortion of the angles of the eyes, redness of the cheeks, mental disturbances, dimness of vision, a weak voice and bleeding from the ears or the nose. In the presence of such symptoms the death of the patient may be expected within at most a hundred days.

If the fracture of the cranium is accompanied by a large scalp wound, any fragments of bone or other foreign body are to be extracted at once, unless haemorrhage or the weakness of the patient are feared, and then a piece of linen is to be cautiously worked in with a feather between the cranium and the dura mater. In the fracture itself a piece of linen, or better of silk, is inserted, the apparent purpose of this double dressing being to protect the dura mater from the discharges and to solicit their flow to the exterior. A piece of sponge, carefully washed, dried and placed in the wound, Gilbert tells us, absorbs the discharges satisfactorily and prevents their penetration internally. Over the wound is placed a bit of linen moistened with egg-albumen, then a dressing of lint, and the whole is maintained in place by a suitable bandage. Finally the patient is to be laid in bed and maintained in such a position that the wound will be dependent, so as to favor the ready escape of the discharges. This dressing is to be renewed three times a day in summer, and twice in winter. Proud flesh upon the dura mater is to be repressed by the application of a sponge, well-washed and dried, and if it appears upon the surface of the wound after the healing of the fracture, it is to be destroyed by the use of the hermodactyl. When the external wound is healed, the cicatrix is to be dressed with the apostolicon cyrurgicum, an ointment very valuable for the consolidation of bones, the leveling (adaequatio?) of wounds, etc.

When the wound of the scalp is small, so as to render difficult the determination of the extent of the fracture by exploration with the finger, it should be enlarged by crucial incisions, the flaps loosened from the cranium by a suitable scraper (rugine) and folded back out of the way, and any fragments of bone removed by the forceps (pinceolis). If, however, haemorrhage prevents the immediate removal of the fragments, this interference may be deferred for a day or two, until the bleeding has stopped or has been checked by suitable remedies. Then, after their removal, the piece of linen described above is to be inserted between the cranium and dura mater. Upon the cranium and over the flaps of the scalp, as well as in their angles, the ordinary dressing of albumen is to be applied, covered by a pledget of lint and a suitable bandage. No ointment, nor anything greasy, should be applied until after the healing of the wound, lest some of it may accidentally run down into the fracture and irritate the dura matter. Some surgeons, Gilbert tells us, insert in the place of the fragments of the cranium removed a piece of a cup (ciphi) or bowl (mazer), or a plate of gold, but this plan, he says, has been generally abandoned (dimittitur.)

Sometimes the cranium is simply cracked without any depression of the bone, and such fractures are not easily detected. Gilbert tells us, however, that if the patient will close firmly his mouth and nose and blow hard, the escape of air through the fissured bone will reveal the presence of the fracture (f. 88a). In the treatment of such fissures he directs that the scalp wound be enlarged, the cranium perforated very cautiously with a trepan (trepano) at each extremity of the fissure and the two openings then connected by a chisel (spata?), in order to enable the surgeon to remove the discharges by a delicate bit of silk or linen introduced with a feather. If a portion of the cranium is depressed so that it cannot be easily raised into position, suitable openings are to be made through the depressed bone in order to facilitate the free escape of the discharges.

Gunshot wounds were, of course, unknown in Gilbert's day. In a chapter entitled "De craneo perforato" he gives us, however, the treatment of wounds of the head produced by the transfixion of that member by an arrow. If the arrow passes entirely through the head, and the results are not immediately fatal, he directs the surgeon to enlarge the wound of exit with a trephine, remove the arrowhead through this opening, and withdraw the shaft of the arrow through the wound of entrance. The wounds of the cranium are then to be treated like ordinary fractures of that organ (f. 88c).

In wounds of the neck involving the jugular vein (vena organica), Gilbert directs ligation of both extremities of the wounded vessel, after which the wound is to be dressed (but not packed) with the ordinary dressing of egg-albumen.

Wounds of nerves are treated with a novel dressing of earthworms lightly beaten in a mortar and mixed with warm oil, and he professes to have seen nerves not only healed (conglutinari), but even the divided nerve fibres regenerated (consolidari) under this treatment. In puncture of a nerve Gilbert surprises us (f. 179d) by the advice to divide completely the wounded nerve, in order to relieve pain and prevent tetanus (spasmus).

Goitre, not too vascular in character, is removed by a longitudinal incision over the tumor, after which the gland is to be dragged out, with its entire capsule, by means of a blunt hook. A large goitre in a feeble patient, however, is better left alone, as it is difficult to remove all the intricate roots of the tumor, and if any portion is left it is prone to return. In such cases Gilbert says we shrink from the application of the actual cautery, for fear of injury to the surrounding vessels and nerves. Whatever method of operation is selected, the patient is to be tied to a table and firmly held in position.

Wounds of the trachea and oesophagus, according to Gilbert, are invariably mortal.