11. _Translatio urinæ._ Translation of urine. There is a curious case related in the Transaction of the College of Physicians at Philadelphia, Vol. I. p. 96. of a girl, who labouring under an iscuria vomited her urine for many months; which could not be distinguished from that which was at other times drawn off by the catheter. After having taken much opium, she seems at length to have formed gravel, some of which was frequently brought up by vomiting. Dr. Senter ascribes this to the retrograde motions of the lymphatics of the stomach, and the increased ones of those of the bladder, and refers to those of Sect. XXIX. of this work; which section was first published in 1780; and to Macquire's Dictionary of Chemistry, Art. Urine. The patient above described sometimes had a discharge of urine by the navel, and at other times by the rectum, and sometimes by urinous sweats. * * * * * ORDO III. _Retrograde Irritative Motions._ GENUS III. _Of the Sanguiferous System._ SPECIES. 1. _Capillarium motus retrogressus._ In microscopic experiments it is usual to see globules of blood regurgitate from the capillary vessels again and again, before they pass through them; and not only the mouths of the veins, which arise from these capillaries, are frequently seen by microscopes to regurgitate some particles of blood during the struggles of the animal; but a retrograde motion of the blood in the veins of these animals, from the very heart to the extremities of the limbs, is observable by intervals during the distresses of the dying creature. Haller, Elem. Phys. T. i. p. 216. See Section XXIX. 3. 8. 2. _Palpitatio cordis._ May not the ineffectual and weak unequal motions of the heart in hysteric cases be ascribed to the retrograde motions of it, which continue for a short time, or terminate in syncope? See Class IV. 3. 1. 6. 3. _Anhelatio spasmodica._ In some asthmas may not the difficulty of respiration arise from the inverted action of the finer branches of the bronchia, or of the pulmonary artery or vein, like those of the capillaries above described in No. 1. of this genus? * * * * * _The Orders and Genera of the Second Class of Diseases._ * * * * * CLASS II. DISEASES OF SENSATION. ORDO I. _Increased Sensation._ GENERA. 1. With increased action of the muscles. 2. With the production of new vessels by internal membranes or glands with fever. 3. With the production of new vessels by external membranes or glands with fever. 4. With the production of new vessels by internal membranes or glands without fever. 5. With the production of new vessels by external membranes or glands without fever. 6. With fever consequent to the production of new vessels or fluids. 7. With increased action of the organs of sense. ORDO II. _Decreased Sensation._ GENERA.