Fig. 58. — EFFECT OF TUBERCULIN ON 1 HE KIDNEY. AN UNUSU..\LLY SEVERE REACTION IN THE 
RENAL TUBULES AND INTERSTITIAL TISSUE FOLLOWING A TEST DOSE OF TUBERCULIN. SUCH A 
MARKED CHANGE SUGGESTS THAT IN THIS CASE PRE-EXISTING RENAL DAMAGE \\ .\S AGGRAVATED. 
THE ANIMAL WAS TUBERCULOUS BUT HAD NO LESIONS IN THE KIDNEY. 
