EFFECT OF THYROIDECTOMY ON NITROGENOUS METABOLISM. 483 



No. iir. 



Dec. 5. — Put in chamber. Wt., 7-6 kilos. 



Dec. 12.— Wt., 7-2 kilos. 



Dec. 13. — Left lobe and lower half of right removed. 



Dec. 24.— Wt., 6-3 kilos. 



Jan. 13. — Dog quite well, except opacity of R. cornea noticed; 

 L. corneal opacity soon after. 



March 2.— Killed. ^Vt., S'l kilos. 



( Blood, 0-024 p.c. urea. 



( Muscle, G'26 p.c. kreatin. 



In this dog the normal N. intake = 3-42 grm. ; N. output = 4-7 grm., 

 with loss of wt. = 0-4 kilo. 



After thyroidectomy, K intake = 3 grm.; N. output = 4 '4 grm., 

 with loss of wt. = 0*9 kilo. j 



