23. ELLENBERGER. Vergl. mikroskop. Anatomie der Haustiere. II.

24. COURRIER, M. R. On the Existence of a Secretion of the Epididymis

of the Hibernating Bat and Its Significance. C. R. Soc. de Biol.

(Paris), 1920, LXXXIII, 67–69.

25. STIGLER, R. Abstract in Jour. Phys. et Path. Gen. (2) CLXXI, 273,

September, 1918.

26. DISSELHORST. Ansfuhrapparat und Anhangsdrusen der männlichen

Geschlechtsorgane. Oppel’s Lehrbuch der vergleichenden mikr.

Anat. der Wirbeltiere, IV, Jena, 1904.

27. RYTINA, A. A. The Verumontanum, With Special Reference to the Sinus

Pocularis: Its Histology, Anatomy, and Physiology. Jour. Urology,

I, 1917, 231.

28. FISH, P. A. The Spermatic Secretion and Its Ultraparticles. Cornell

Veterinarian, October, 1921.

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