1. Poly orchidism;Boggon;Brit. Jour. Surg.,1933
2. An adenomyoma of the vesico-vaginal septum and a supernumerary ovary;Brady;Bull. Johns Hopkins Hosp.,1925
3. Normale und abnorme entwicklung des Menschen;Broman,1911
4. A case of duplication or subdivision of the testicle;Edington;Brit. Med. Jour.,1928
5. A case of three ovaries;Essen-Möller;Hygiea,1900