120 



CARL R. MOORE. 



condition at the time of scrotal replacement. Having remained 

 in the abdomen for 4^ months the testis from animal No. 7 was 

 returned to the scrotum and allowed to remain therein for a 

 period of five months. When the animal was killed this testis 

 vvas firmly adherent to the bottom of the scrotum and more or 

 less surrounded by its fat body. It cannot, therefore, be con- 

 sidered to have a normal environment on account of the con- 



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Fie. 3. Seminiferous tubules from guinea pig testis (145-213) elevated to 

 abdomen thirty days after birth, remaining in abdomen 4^ months, replaced in 

 scrotum for five months. Complete recovery in this area, si, seminiferous 

 tubule with spermatozoa; ta, tunica albuginea. 



stricting adhesions and the encapsulating fat. It was many 

 times larger than when replaced in the scrotum and compared 

 rather favorably in size with the normal testis opposite. From 

 entire cross sections at three different levels one can see that 

 the majority of the seminiferous tubules are in active spermato- 

 genesis and a large percentage of these contain spermatozoa. 

 Fig. 3 is a reproduction of a few normal seminiferous tubules, 



