402 MORBID PRODUCTS. 



hares consist, according to Marcet and Brande, of phosphate 

 and carbonate of lime. Vesical calculi of swine consist chiefly 

 of carbonate and phosphate of lime, and ammoniaco-magnesian 

 phosphate; according to Yellowly also, of oxalate of lime. The 

 renal calculi of horses consist of carbonate and phosphate of 

 lime in very variable proportions ; Gurlt found 92 -0^ of the 

 former, and O9g of the latter ; while Brande found 22g of the 

 former, and 76 of the latter : their vesical calculi are com- 

 posed, according to Brande and Marcet, of the same consti- 

 tuents : a specimen, analysed by Buchholz, likewise contained 

 ammoniaco-magnesian phosphate, silica, sulphate of lime, and 

 carbonate of magnesia : a calculus, analysed by Wackenroder, 

 contained 72'47 parts of carbonate of lime, 3- 52 of carbonate 

 of magnesia, 3 '25 of sulphate of lime, 1'91 of phosphate of 

 lime, 17' 10 of mucus, and 1-40 of water. Vesical and renal 

 calculi of oxen consist, according to Eapp, Brande, and Gmelin, 

 of carbonate of lime. A calculus, analysed by Wurzer, con- 

 tained 81-4 parts of carbonate of lime, 6-2 of phosphate of 

 lime, 4*3 of carbonate of magnesia, '009 of peroxide of iron, 

 and -001 of peroxide of manganese. The same chemist found 

 in a calculus taken from the urethra of an ox, 60 parts of 

 carbonate and phosphate, of lime, 38-2 of silica, and 1-8 of 

 peroxide of iron. In a very hard concretion taken from the 

 urethra of an ox, I found a large proportion of carbonate of 

 lime, mixed with a little phosphate of lime and silica. 



[The following analyses have lately been made by Von Bibra : 



Calculi from ureter Calculus from bladder 



of a horse. of swine. 



Uric acid was taken up by the potash in this instance. 



