Page:A Treatise on the Diseases of the Bones.djvu/19

Rh :3. Interstitial Absorption of Bone.
 * 4. Interstitial Deposition and Enlargement of Bone.
 * 5. Atrophy or Wasting of Bone.

IV. The Fourth Head includes those preter-natural growths from bone, which have not been proved to be the result of Inflammation, and which are not of a malignant nature.

V. The Fifth Head embraces those incurable diseases which depend upon degeneration of the osseous tissue, viz.
 * 1. Spina Ventosa.
 * 2. Osteo-Sarcoma, or Fungus Hæmatodes of Bone.

VI. A Sixth Head may with propriety include those anomalous affections of bone, concerning the nature of which little as yet is known.
 * 1. Bloody Tumour, or Aneurism of Bone.
 * 2. Tumours dependent upon the existence of Hydatids in the substance of the osseous tissue.