1908 - 9 .] 
Mendelian Action on Differentiated Sex. 
615 
but from the primitive germ-cell mass — a part of the zygote, and 
zygotic therefore. Thus the P.G.C.’s are also zygotes, and the 
gametes reduced P.G.C.’s. This generalisation I call the Owen- 
Weismann law. 
I finrerchfellhuncL 
2 Urachu 
ZXar'nblase 
Itnke l/rntere 17 
lillerscher (fang 16 
l/rrue renvanc 15 
'ierenanlaae 14 
rHarnleiter 13 
Leitband /ahaeschnLtten) 1Z 
4 /Sinus un openilalLs 
6 (feschlecKtynmlsl 
6 (jtschlQchlshockt, 
7 ^tschlechlsfaH en. 
(fesMzditsftitxhe, 8 
Fig. 1. — Diagram 
1. Diaphragmatic ligament. 
2. Urachus. 
3. Bladder. 
4. Urinogenital sinus. 
5. Prepuce. 
6. Sexual eminence. 
f urogenital system in type con 
7. Sexual folds. 
8. Sexual furrow. 
9. Cloaca. 
10. Genital cord. 
11. Rectum. 
12. Gubernaculum (cut). 
to both sexes (Bonnet). 
13. Ureter. 
14. Kidney rudiment. 
15. Wolffian duct. 
16. Muller’s duct. 
17. Left Wolffian body with 
sexual gland. 
1 Appendix veticularis 
2 Ostium tubae 
3 Fimbria ovarica 
Ovarium — 
4 Ligamentum ovarii prophum 
5 Uterut 
6 Vagina 
Epoophoron 
Paroophoron 1 1 
Ligamentum uteri rotundum IQ 
Gartner'scher Gang 9 
Leietenring 8 
-* W. bulb 3 and s.u.g. 7 
Fig. 2. — Diagram of female urogenital organs, showing ovary, tube, uterus, 
vagina, ovarium, and round ligaments, Dominant : epoophoron and 
paroophoron, Recessive and on male type (modified from Bonnet). 
1. Hydatid. 3. Ovarian fimbria. 8. Internal ring. 
2. Ostium tubse. 4. Ovarian ligament. 
