—— ——, 1911. Another case of sex-limited heredity in poultry. Proc. Soc. Exp. Biol., Med., IX.
—— ——, 1912. Sex-limited inheritance in poultry. Jour. Exp. Zool., XIII. 1912.
Dittrich, V. R., 1888. Über Andrena praecox ♀ und Astacus fluviatilis ♀ mit teilweise männlichen Kennzeichen. Zeit. f. Ent., XIII.
Durham, F. M., and D. C. E. Marryat., 1908. Note on the inheritance of sex in canaries. Reports Evol. Committee, IV.
Foges, Arthur, 1903. Zur Lehre von den secundären Geschlechtscharakteren. Arch. f. Phys., 93.
Fowler, C. H., 1894. Notes on some specimens of antlers of the fallow deer, showing continuous variation and the effects of total or partial castration. Proc. Zool. Soc. London.
Geddes, A. C., 1910. Abnormal bone growth in the absence of functioning testicles. Proc. Roy. Soc. of Edinburgh, XXXI.
Giard, A., 1904. Comme la castration agit-elle sur les caractères sexuels secondaires? Compt. Rend. Soc. Biol., LVI.
Gissler, C. F., 1881. Description of a hermaphroditic phyllopod crustacean (Eubranchipus). Am. Nat., XV.
Goodale, H. D., 1909. Sex and its relation to the barring factor in poultry. Science, XXIX.