⚠The image shows a two-page spread. Some text near the central binding is slightly obscured or distorted, and the edges of the parchment show some wear. The script is a medieval Gothic Textualis with standard Latin abbreviations.

...[red bile is produced] The text likely concludes a warning that in the heat of Summer, "red bile is generated.". Therefore, one must beware of everything that is hot and dry in complexion The specific balance of the four qualities—hot, cold, moist, and dry—that determines the nature of a person or substance: because all such things produce red bile original: "colera rubea"; also known as "choler," this humor was associated with heat, dryness, and a fiery temperament. Also, one must abstain from eating and drinking to excessive fullness, lest the natural heat [of the body] be extinguished. And one should eat when [the food] is of a cold and moist complexion, such as the meat of a heifer with vinegar, and young pot-reared chickens, porridge made of barley flour, and any fruits with sharp flavors, and sour apples. And one must be sparing in sexual matters, and one must abstain from all purgings and loosening of the bowels with great effort, unless necessity demands it. And all movements of the limbs [should be avoided] unless one dwells in a pure, clear place. Concerning autumn.

Autumn

It then begins when the sun enters the first degree of Libra The zodiac sign of the Scales, marking the autumnal equinox. And it contains ninety-eight days and seventeen hours. And this is from the fourteenth day of September until the thirteenth day of November. In this time, the days and nights are made equal according to the [meridian] original: "mrc", likely an abbreviation for "meridiem" or a specific geographical reference. In this time also, the night grows and takes away from the day. The air becomes chilly; the northern winds blow. The seasons change. The rivers decrease; the springs are diminished. Green things wither. Fruits fail. The face of the earth lacks its beauty. The birds seek out warm regions. Animals seek their dens. Serpents seek their pits where they gather what they need to live on account of winter. Autumn is compared to...

...a woman of full age, in need of clothing, when youth has departed from her and old age hastens toward her. Autumn is a cold and dry time, in which black bile original: "colera nigra"; also known as "melancholy," this humor was associated with the earth, cold, and dryness is gathered in the body. And then it is necessary that hot and moist things be taken, such as chickens, and [pure] waters, and old wine, and sweet grapes. And abstain from all things that generate [black] bile. The movement of the body and the use of exercise should be greater than in summer. Baths also and purgatives [may be used] if it be necessary in this time. If there is no need for vomiting, let [treatment] be done in the light at midday and in the warmer hour of the day, because in warm places the superfluities Excess waste or fluids in the body are gathered and thickened. Purgation of the body ought to be done in this time by all those things which draw out black bile and restore many humors. Concerning winter.

Then Winter

begins when the sun enters the first degree of Sagittarius The zodiac sign of the Archer. And it contains ninety-six days and fourteen hours. This is from the thirteenth day of November until the thirteenth day of March. In this time, the nights are lengthened and the days are shortened. The cold grows strong. The winds are made harsh. The leaves fall from the trees. Youthful vitality dies away for the most part; [the plants] harden when a part remains in the belly of the earth and the mountains because of the cold and moisture. Bodies tremble. Plants and youth are weakened. The virtues [natural powers of the body] limp, as if conquered...