1906.] The Relation of the Kidneys to Metabolism. 



79 





N intake. 



N in urine. 



Total faeces. 



Total. 



Daily 

 average. 



Total. 



Daily 

 average. 



After first operation — 



Period of 10 days 



grammes. 

 39-7 



4-46 



grammes. 

 3-9 



0-74 



grammes. 

 29-01 



8-78 



grammes. 

 2-9 



1-46 



grammes N. 

 2-26 



1 "0 (approx.) 



After second operation -- 

 6 days 





Post mortem. — Eemainder of kidney adherent to spleen, normal in appear- 

 ance, very little omental fat ; none visible elsewhere. Muscles not obviously 

 wasted. No evidence of sepsis. 



Total kidney weight = 29*6 grammes. 



Weight found post mortem = 6 7 „ 



= f total kidney weight. 



= 2*3 grammes per kilo. 



Cat III. — September 4. Weight, 2500 grammes. Eemoved part of left 



kidney- 



-4 grammes. 



Date. 



Weight. 



Total N in 

 urine. 



N 



N as NIL, 



N as 

 creatinin. 



N intake. 



September 11 



„ 12 



» 16 



„ 19 



„ 23 



October 2 



„ 5 



grammes. 

 2140 

 2120 

 2220 



grammes. 

 3 52 

 4-51 

 5-12 



per cent. 



90-1 



per cent. 

 3-1 

 4-5 

 3-6 



per cent. 

 1-3 



1-3 



grammes. 



10-4 



7-6 



7 3 



Removed right kidney, wt. 1025 grammes ; wt. of cat, 2220 grammes. 



2020 

 1880 

 1670 



3-26 

 113 

 0-89 



75-0 

 83-1 



9-9 



10-0 



2-0 



2-0 

 1-7 

 1-1 



9-0 



nil 



nil 



After the second operation, the cat ate well for 12 days ; after that it ate 

 very little and wasted rapidly. It was moribund on October 6, and was killed 

 by chloroform. Weight at death 1640 grammes. 



Post mortem. — There was no sepsis ; very little fat was visible in the 

 subcutaneous tissues. 



Total kidney weight = 20*65 grammes. 



Amount left post mortem = 6*4 „ 



= less than ^ total kidney weight. 



= 2*5 grammes per kilo. 



