Trans. Roy. Soc. Edin. 
Professor Arthur Robinson 
Yol. LII. 
‘The Formation, Rupture, and Closure of Ovarian Follicles in Ferrets and Ferret-Polecat 
Hybrids, and some Associated Phenomena.” — Plate IX. 
Stl.f.p. 
Fig. 53. 
L.f.p. 
M.e. 
