Essence.
Acorns are famous. They have an astringent property, and chestnuts are not as astringent. The most astringent part of the acorn is the jaft, that is, its inner shell.
Nature.
Acorns are cold; they are dry in the second degree, but their coldness is in the first degree, and chestnuts, due to their sweetness, have little hotness; oak leaves knit more strongly and dry less.
Actions and properties.
Chestnuts are peeled; but all types of acorns, especially their inner membrane, swell the lower abdomen, bind and retard bleeding. Acorns and chestnuts strengthen the limbs. Chestnuts are slow to digest, but have better nutrition, and if mixed with sugar, their nutritional value is very good. Galen says that acorns are more nutritious than all seeds, so that they even come close to a grain of bread, but chestnuts, due to their sweetness, are more nutritious than acorns. However, it is not commendable for people to eat both, although perhaps it is fine for pigs to eat them.
Tumors and acne.
Acorns with kid fat or salted pork help with hardening. Oak fruits help at the onset of illness from hot tumors.
Wounds and ulcers.
Acorns, if burned and consumed for this purpose, prevent the spread of ulcers and creeping ulcers. Oak leaves, when crushed and sprinkled on wounds, glue them together.
Organs of the head.
Acorns cause headaches because they trap steam, locking up nature.
Respiratory system.
Acorns help against hemoptysis.
Nutritional organs.
Acorns are good for stomach moisture.
Eruption organs.
Acorns strengthen and help against abrasions and ulcers in the intestines and against bleeding and increase the flow of urine.
Poisons.
Acorns help against the poisons of reptiles, a decoction of their peel with cow's milk helps against the poison of Armenian arrows, and the fleshy pulp of chestnuts against poisons in general.