. Gonadectomy in relation to the secondary sexual characters of some domestic birds . A. M. Graves Pinx. Normal Rouen Duck. THUMMTUIMCa H GOODALE PLATE III. ;.«.^ A. M. GRAVES PiNX. An Ovakiotomized Dtjck, No. 169, Ttpe I. GOODALE PLATE IV

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Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192400301, bookyear1916