[Involution of gonadotrophic cells of the pituitary gland in the male frog, Rana esculenta, after section of the pituitary stem]. / Involution des cellules gonadotropes de l'hypophyse chez la Grenouille mâle, Rana esculenta, après section de la tige hypophysaire

One and two months after section of the hypophyseal stalk in the male frog. Rana esculenta, and involution of numerous gonadotrophic cells, contrasting with the normal aspect of the eosinophilic cells can be observed.