1. Progress report of Marten breeding experiments;Ashbrook F. F.;Leaflet Bur. biol. Surv. U.S. Dep. Agric,1927
2. The normal breeding season and gestation period of Martens;Ashbrook F. G.;Circ. U.S. Dep. Agric,1930
3. XI—The reproductive processes of certain mammals. Part IX—Growth and reproduction in the stoat (
Mustela erminea
)
4. Delayed Implantation in the Stoat (Mustela mustela)
5. Die Entwicklungsgeschichte des Dachses und die Frage der Zwil‐lingsbildung;Fischer E.;Verh. anat. Ges. Jena, Ergänzungsheft zum Anat. Anz.,1931