476 MORBID PRODUCTS. 



Hence this concretion, in relation to the proportions of its 

 salts, differs only in this respect from the osteoid tumour that 

 it contains a larger amount of carbonate of lime and a smaller 

 quantity of soluble salts. 



[A concretion found in one of the bronchi of a man who died 

 from phthisis was analysed by Scherer. It had a knotty, white 

 appearance, and was invested with a delicate membrane. It 

 contained in 100 parts : 



Organic matter . . . .20-10 



Phosphate of lime .... 69'92 

 Carbonate of lime .... 9-09 



Chloride of sodium, sulphate and phosphate of soda 0-89 



A hard concretion of the size of a pea, attached to the pleura, 

 was analysed by Schierenberg, and found to contain : 



Organic matter . . . 36-967 



Phosphate of lime . . . 55-924 



Carbonate of lime . . . 7'109] 



A concretion in the pericardium, analysed by Petroz and 

 Robinet, consisted of 65*3 parts of basic phosphate of lime, 6*5 of 

 carbonate of magnesia, 4*0 of sulphate of soda, with a little sul- 

 phate of lime, and 24' 3 of organic matter. Concretions in the 

 mesenteric glands have been analysed by Wild : they contained 

 56-61 of phosphate of lime, 2g of carbonate of lime, and 26-28 

 of cellular membrane and fat. In a calcareous deposition on the 

 peritoneum, Bley 1 found 34 parts of carbonate of lime, 27'66 

 of carbonate of magnesia, 10-32 of phosphate of lime, and 12'4 

 of albumen, mucus, and fat. A concretion from the prostate 

 gland, examined by Lassaigne, contained 84* 5 of phosphate of 

 lime, with traces of carbonate of lime and animal matter. 



I examined an incrustation occurring in the aorta of an old 

 man who died from phthisis pulmonalis; it consisted principally 

 of carbonate of lime and earthy phosphates. 



[The ossified arterial membrane in the case of marasmus 

 senilis, mentioned in p. 317 yielded, after careful preparation : 



1 Archiv de Pharmacic, vol. 20, p. 212. 



