: 
Trans. Hoy. Soc. Edin. 
Vol. Lit. 
Professor Arthur Eobinson : 
“The Formation, Eupture, and Closure of Ovarian Follicles in Ferrets and Ferret-Polecat 
Hybrids, and some Associated Phenomena.” — Plate YII. 
Pig. 40. 
Mini. 
01 . 
