CLASS II. 1. 4. 19. OF SENSATION. 231 



may be termed a suppuration of them; it differs from the above 

 as it generally is occasioned by some external injury, as in decay- 

 ing teeth; or by venereal virus, as in nodes on the tibia; or by 

 other matter derived to the bone in malignant fevers; and is 

 not confined to the ends of them. 



The separation of the dead bone from the living is a work of 

 some time. See Sect. XXXIII. 3. 1. A new and able work on 

 the necrosis of bones is published by I. Russell, Edinburgh; 

 London, Robinsons. And another by I. P. Weidmann, de Ne- 

 crosi Ossium, at Francfort; Boosey, London; which is also a val- 

 uable work. 



M. M. When this disease is not formed in syphilis, or by 

 metastasis in fever, but t is simply an inflammation of the perios- 

 teum or of the solid bone, or of its medullary cells, the method 

 of cure should consist in evacuations by bleeding and cathartics, 

 and by leeches applied to the painful or tumid parts; and after- 

 wards by taking inwardly soda phosphorata and a decoction of 

 rubia tinctorum, madder-root; as the former is believed to give 

 solidity to bones, and the latter, as it colours the bones of young 

 or growing animals, is known to be carried thither during their 

 softer or more sensitive state, and may be therefore worth a triaK 

 Se. Innutritio ossium. Class L 2. 2. 14. 



