94 ABNORMAL CONDITIONS OF THE URINARY ORGANS. 



409. The fellow kidney to the last. The ureters are united 



closer to the gland than in the preceding preparation. 



Presented by Sir W. Blizard. 



410. A double Human kidney and a portion of the urinary 



bladder. There are four ureters, two to each kidney. 

 The left kidney has not been preserved. 



411. A section of a very large Human kidney. The pelvis and 



ureter are double ; they are injected. Hunterian. 



412. A section of a similar kidney. Hunterian. 



413. The lower part of a Human urinary bladder with four per- 



fectly distinct ureters. The orifices of the ureters and 

 seminal ducts are marked by bristles. Mus. Heaviside. 



414. A similar preparation from the same subject as Nos. 411 



and 412. Hunterian. 



415. A similar preparation, in which only one lateral half of the 



bladder has been preserved. Hunterian. 



416. A pair of kidneys from a Human adult, with partial 



doubling of both glands and of their pelves. The glands 

 are united by their lower margins. A portion of the 

 aorta is preserved, and a second set of renal arteries are 

 seen about 2^ inches below the normal vessels. 



417. The kidneys of an adult Human subject with partial 



doubling of both glands, including their pelves. The 

 lower edges of the glands have coalesced across the mesial 

 line. 



418. The lower half of the trunk of a Human foetus with large 



partially double kidneys united by their lower edges 

 across the mesial line. There is an additional renal 

 artery on the right side only. 



Presented by Sir W. Blizard. 



Class V. AEEEST OF DEVELOPMENT. 



A. Of the Kidney. 



419. The kidneys of an encephalous full-time (?) foetus slightly 

 arrested in their development. The lobuli are somewhat 

 more distinct than in the normal kidneys of a seven 

 months' foetus. 



