When the matter is divers and confused, how should it otherwise be, but that the species should be divers and confused? Many new and old writers have spoken confusedly of it, confounding melancholy and madness, [and] will have madness no other than melancholy in extent, differing (as I have said) in degrees. Some make two distinct species: others acknowledge a multitude of kinds, and leave them indefinite. Savanarola will have the kinds to be infinite; Melancthon seconds him, as the humour is diversely adust and mixed, so are the species divers; but what these men speak of species I think ought to be understood of symptoms; and so doth Arculanus interpret himself: infinite species, id est, symptoms; and in that sense, as Jo. Gorrheus acknowledgeth in his medicinal definitions, the species are infinite, but they may be reduced to three kinds by reason of their seat; head, body, and hypochrondries. This threefold division is approved by Hippocrates in his Book of Melancholy, (if it be his, which some suspect) by Galen, and most of our new writers. Th. Erastus makes two kinds; one perpetual, which is head melancholy; the other interrupt, which comes and goes by fits, which he subdivides into the other two kinds, so that all comes to the same pass. Some again make four or five kinds, with Rodericus a Castro, and Lod. Mercatus, who in his second book will have that melancholy of nuns, widows, and more ancient maids, to be a peculiar species of melancholy differing from the rest: some will reduce enthusiasts, ecstatical and demoniacal persons to this rank, adding love melancholy to the first, and lycanthropia. The most received division is into three kinds. The first proceeds from the sole fault of the brain, and is called head melancholy; the second sympathetically proceeds from the whole body, when the whole temperature is melancholy: the third ariseth from the bowels, liver, spleen, or membrane, called mesenterium, named hypochondriacal or windy melancholy, which Laurentius subdivides into three parts, from those three members, hepatic, splenetic, mesaraic. Love melancholy, which Avicenna calls ilishi: and Lycanthropia, which he calls cucubuthe, are commonly included in head melancholy; but of this last, which Gerardus de Solo calls amoreus, and most knight melancholy, with that of religious melancholy, virginum et viduarum, maintained by Rod. a Castro and Mercatus, and the other kinds of love melancholy, I will speak of apart by themselves in my third partition. The three precedent species are the subject of my present discourse, which I will anatomise and treat of through all their causes, symptoms, cures, together and apart; that every man that is in any measure affected with this malady, may know how to examine it in himself, and apply remedies unto it.
It is a hard matter, I confess, to distinguish these three species one from the other, to express their several causes, symptoms, cures, being that they are so often confounded amongst themselves, having such affinity, that they can scarce be discerned by the most accurate physicians; and so often intermixed with other diseases, that the best experienced have been plunged. [...] So that I conclude of our melancholy species, as many politicians do of their pure forms of commonwealths, monarchies, aristocracies, democracies, are most famous in contemplation, but in practice they are temperate and usually mixed, (so Polybius informeth us) as the Lacedaemonian, the Roman of old, German now, and many others. What physicians say of distinct species in their books it much matters not, since that in their patients’ bodies they are commonly mixed. In such obscurity, therefore, variety and confused mixture of symptoms, causes, how difficult a thing is it to treat of several kinds apart; to make any certainty or distinction among so many casualties, distractions, when seldom two men shall be like effected per omnia? ‘Tis hard, I confess, yet nevertheless I will adventure through the midst of these perplexities, and, led by the clue or thread of the best writers, extricate myself out of a labyrinth of doubts and errors, and so proceed to the causes.
(Robert Burton, The Anatomy of Melancholy, §3.1.3)
Lycanthropia, which Avicenna calls cucubuth, others lupinam insaniam, or wolf-madness, when men run howling about graves and fields in the night, and will not be persuaded but that they are wolves, or some such beasts. Aetius and Paulus call it a kind of melancholy; but I should rather refer it to madness, as most do. Some make a doubt of it whether there be any such disease. Donat ab Altomari saith, that he saw two of them in his time: Wierus tells a story of such a one at Padua 1541, that would not believe to the contrary, but that he was a wolf. He hath another instance of a Spaniard, who thought himself a bear; Forrestus confirms as much by many examples; one amongst the rest of which he was an eyewitness, at Alcmaer in Holland, a poor husbandman that still hunted about graves, and kept in churchyards, of a pale, black, ugly, and fearful look. Such belike, or little better, were king Praetus’ daughters, that thought themselves kine. And Nebuchadnezzar in Daniel, as some interpreters hold, was only troubled with this kind of madness. This disease perhaps gave occasion to that bold assertion of Pliny, some men were turned into wolves in his time, and from wolves to men again: and to that fable of Pausanias, of a man that was ten years a wolf, and afterwards turned to his former shape: to Ovid’s tale of Lycaon, &c. [...] This malady, saith Avicenna, troubleth men most in February, and is nowadays frequent in Bohemia and Hungary, according to Heurnius. Scheretzius will have it common in Livonia. They lie hid most part all day, and go abroad in the night, barking, howling, at graves and deserts; they have usually hollow eyes, scabbed legs and thighs, very dry and pale, saith Altomarus; he gives a reason there of all the symptoms, and sets down a brief cure of them.
(§1.1.1)