Fig. 28 Reproductive organs of a seven weeks old free-martin. X tV- Born 

 twin to a male, case 44. The dissection shows a dorsal view. Description in 

 text. 



Fig. A 1, left saccus vaginalis containing gonad; 2, right saccus vaginalis 

 containing gonad; 3, Vas deferens (Wolffian duct); 4, broad ligament; 5, ureter; 

 6, bladder; 7, seminal vesicles; 8, urogenital sinus; 9, vulva; 10, clitoris. 



Figs. B and C Left and right sacci vaginales opened. 1, testis; 2, epididymis. 



Fig. 29 Reproductive organs of a free-martin described by Numan ('43) 

 from his plate XL Description in the text (p. 413). The description of this 

 plate was missing. The explanation of the letters is therefore my own inter- 

 pretation, fl, epididymis with testis above; b, Saccus vaginalis; c.c, cut wall 

 of saccus vaginalis; d.e.f, spermatic artery, vein and nerve (?); g, Vasa defer- 

 entia (Wolffian ducts); h, bladder; i, broad ligament; A-./, ligaments of bladder; 

 (?); ?«, ureters; n, seminal vesicles; o, entrance of vasa deferentia into the urino- 

 genital sinus; p, urinogenital sinus; q, prostate; /■, penis; s, retractor muscles of 

 penis; t, ?; ?/,' external opening of urinogenital sinus (urethra) beneath the glans 

 penis; vac, accessory openings in the urethra; x, vulva; 7, anus; 8, perineum. 



451 



