B. The theca extended, shewing the nerves with the accompanying vessels turgid with blood. a. Turgid vessels of the arachnoid of the spinal cord. PLATE IX. Drawings from preparations referred to in Mr. Lawrence's paper on dislocations of the vertebræ. FIG. 1. A back view of the third, fourth, fifth, and sixth cervical vertebræ, which are marked by corresponding figures. 7. 8. The superior articular processes of the fifth vertebra exposed, in consequence of the fourth having been completely dislocated forwards. 9. Apex of the spinous process of the fourth lying in contact with the basis of the spinous process of the fifth vertebra. FIG. 2. E A section of the same bones, shewing the displacement forwards of the body of the fourth vertebra, and the diminution which the accident has produced in the diameter of the vertebral canal. FIG. 3. Front view of the bone described at p. 402. a. Basilar portion of the occipital bone. e. f. Anterior condyloid foramina. process. h. The middle tubercle of its anterior arch. i. The left transverse process. k. The right transverse process. From k to g the atlas is anchylosed to the occiput and to the second vertebra. 1. The axis. m. The right transverse process. FIG. 4. The same parts viewed from the cavity of the cranium. a. Basilar process of the occipital bone. b. Posterior arch of the atlas, ending on the right in an abrupt point, beyond which the bone had been absorbed. c. The axis. It is here anchylosed to the occiput, immediately below the anterior condyloid foramen. d. Dentiform process of the axis, projecting into the cavity of the cranium, on the right side, and towards the front of the foramen magnum. PLATE X. Represents a drawing taken from the first case of fungous eruption detailed by Mr. Wallace in his paper. PLATE XI. Drawings from preparations in the possession of Mr. Langstaff, illustrative of the process of union after fracture of the cervix femoris. FIG. 1. A section of a fractured neck of the thigh-bone within the capsular ligament, shewing great short- . ening by absorption, and a ligamentous union between this portion of the bone and the head of the femur. FIG. 2. and 3. Are sections of a thigh-bone which had been fractured within the capsular ligament, and had united partly by bone and a cartilaginous medium; the neck of the thigh-bone having been nearly absorbed. Plates XII. and XIII. are from drawings to illustrate Mr. Stanley's paper on Injury to the Hip Joint. PLATE XII. Represents a fracture of the trochanter major of recent occurrence. a. Portion of the trochanter separated from the shaft of the femur, and drawn backwards by the muscles towards b. The tuberosity of the ischium. c. Ischiatic nerve. d. Shaft of the femur. PLATE XIII. Represents an instance in which a portion of the trochanter major separated by fracture, although at some distance from the shaft of the bone, has reunited to it. a. Separated portion of the trochanter drawn backwards. b. Tuberosity of the ischium. c. Posterior part of the head of the femur. d. Tendon of the rectus muscle. DONATIONS TO THE MEDICAL AND CHIRURGICAL SOCIETY. Donor's. MR. CHEVALIER. DR. GREGORY. DR. DUNCAN, Sen. DR. ALDERSON. Donations. Lectures on the general Structure of the Human Body, and on the Anatomy and Functions of the Skin; delivered before the Royal College of Surgeons in London, 1823. By Thomas Chevalier, F.R.S. &c. 8vo. London, 1823. An Address to Parents on the present state of Vaccination in this country, with an impartial Estimate of the Protection which it is likely to afford against the Small Pox. By a Candid. Observer. 8vo. London, 1822. Observations on the Office of a faithful Teacher, and on the Duty of an attentive Student of Medicine, delivered as an introductory Lecture to the Institutions of Medicine in the University of Edinburgh, on the 29th of October, 1823. By Andrew Duncan, Sen. M. and P.D. 8vo. Edinburgh, 1823. An Essay on Apparitions, in which their appearance is accounted for by Causes wholly independent of Preternatural Agency. By John Alderson, M.D. 8vo. London, |