4. _Scabies._ Cutaneous diseases; as lepra, itch, pimples, warts, pustule, eschar. 5. _Tumores._ Tumours or swellings; as aneurism, varix, scirrhus, anchylosis, ganglion, exostosis. 6. _Procidentiae._ Swellings arising from dislocation of soft parts; as rupture, prolapsus, phymosis. 7. _Deformationes._ Distortions; as rigidity of joints, humpback, curved bones, squinting, harelip, plica polonica. 8. _Maculae._ Spots; as mole, scar, freckle, sunburn. Now it is obvious that, in a pathological point of view, aneurism, anchylosis, and scirrhus, have no affinity to each other, nor to spina binda or scrofula, which are all genera of the same order. Nor have the different orders, deformationes, procidentiae, humoralia, &c. any very perceptible bond of affinity. But the nosological, like the botanical system of Linnaeus, without being natural, may be useful; and it were absurd to reject all attempts to classify diseases, because no scheme has been or can be invented, capable of giving each state of the body, or its various parts, its precise position in the mind. However, we have no reason to join the outcry of his biographers against the criticism of M. Vicq d'Azyr, who says, "he should have been the last to write on objects that were foreign to him, because he had recourse to that spirit of detail, and that aphoristic and figurative style, which have been considered as defects even in the works which established his reputation." "The whole class of envious persons at Upsal," says Dr Stoever, "and in other parts of Sweden, found it strange and inconsistent at first to see the botanist Linnaeus appear on the scene as a pathologist. They made very merry at his expense; but the goodness of his cause soon became triumphant." That his nosology was contemptible can hardly be admitted; but that it ever was triumphant, excepting in his own university, no one who is desirous of adhering to truth can assert. His theory of medicine is amusing, if not instructive. He supposes the human body to consist of a _cerebroso-medullary_ part, of which the nerves are processes; and a _cortical_ part, including the vascular system and its fluids. The nervous system, which is the animated part, derives its _nourishment_ from the finer fluids of the vascular system, and its _energy_ from an electrical principle inhaled by the lungs. The circulating fluids are capable of being vitiated by _acescent_ or _putrid_ ferments, the former acting on the serum, and causing _critical fevers_; the latter on the crassamentum, and exciting _phlogistic_ diseases. Eruptive ailments are excited by external causes, which he supposes to be animalcula. The cortical or vascular system undergoing continual waste, requires continual reparation, which is effected by means of suitable diet. Its diseases arise from improper food, and are to be remedied by _sapid_ medicines; while those of the medullary system are cured by _olid_ substances.