Introductory Book

[Store] in a glass ampoule to be used for the light. But you must test them diligently so that the air does not become too much, such that [the eye] cannot endure it, or [if] it is of [too great a] magnitude, adjust the administration by making it milder by adding more honey, and it will not harm the tender flesh but will increase [the remedy]. Let there be a powder which, above all, clarifies the sight and returns it even if long lost. [Take] the bones of a sugonis unknown, possibly a bird or fish, and correct the bones through the filing of cardamom, zedoary, galangal, anapi possibly dill, pennyroyal, 8 drams of pepper, calamus, and satin. Repeat [with] betony, the root of rue, balsam, marjoram, oregano, mint, and sage, 1 dram of each, and let it be made into [a mixture] in many quantities, 3 [drams] of all these, and take a portion of the work [of] seeds, finish with anise, and 1 dram of [the others], and let it be made [into] a powder. [Take] 1 dram of galangal, and let it be made into a liquid, 1 dram, and let it be made into [a paste], and 8 drams of [the others], to be eaten in all foods as a way of easing that which everyone [needs].

Regarding redness of the eyes

For redness of the eyes and against the pain and flowing of them, take [the previous mixture] and do it as [the] grease of sheep, [with] barley flour and the white of an egg, and let a plaster be made upon the whole forehead. Cook the white of an egg in water strongly, so that it does not flow and is very hard. Afterward, with the shell removed, extract the yolk. Place the yolk [with] the salt flour so that the liquid of the egg does not appear. Afterward, wring it strongly through a cloth, and anoint the liquid of the salt in the eyes, and that which was [prepared] before, win [against the pain and] place the collyrium in the eyes. This [must be done] with eight ounces of [the mixture] and the yolk of a bird's egg, and mix them together, and [they] are to be ground [until] they are as thin as tow [to be placed] upon the eyes; place the plaster itself on top.

Chapter concerning the eyelids

The eyelids, as it is said, are moved by many [muscles] of the eye so that it closes the eye. Others, which want to rest and do not close it, are the lower eyelids, which acted as a fence, which prohibit the entry of dust.

Chapter concerning the Ear

The ear is composed of bones [with] a tortuous opening inside, so that when [it] is closed, through the [opening of] the first soft [bone], it emits a sound, and some returns a way to the [internal] ear, and it is not a direct way to the ear. Through the inner [channels], it goes to the right ear and another to the left. The motion of the ear is upon the [part of the] vein. Every animal that has ears [has them] movable, except for man. [The] magnitude in the posterior part of the head is weakened [regarding] appropriate hearing, and not without voice, which is a girl, [like] a pomegranate of air in man. We do not say to hear [through] this instrument, because the instrument of the sense of hearing deviates through which they hear by nature. [These are] the instruments of the senses, which all can sense hearing in the middle of the round head, which they hear not only for the grace of the self, but indeed the sense of hearing [is] adored. [It] was stimulated when it encountered air through [the] nature [of the] spirit, [which is] moved to the subtle veins, [and] the [flow] towards the right [side] resolves the impediment of hearing, such as apoplexy, and then it is limited [in] difficulty, all as the aforementioned [parts] of the head [propose]. We assert in this that...