STUDIES ON THE ANDROGENIC ACTIVITY OF 9\x=req-\ FLUORO-1 1\g=b\-HYDROXY-17- METHYLTESTOSTERONE('ULTANDREN'). I. EFFECTS OF 'ULTANDREN ' ON THE SEMINAL VESICLES, COAGULATING GLANDS AND EPIDIDYMIDES OF THE ADULT CASTRATE RAT

lating gland and epididymis weights, and citric acid and fructose production in the former two organs, are described and compared. 2. The regressions of seminal vesicle and coagulating gland weights on log dose are linear, and that of citric acid content is apparently so. The regression of epididymis weight, while probably linear, does not differ significantly from zero and that of fructose content is probably not linear. 3. The importance of these findings with regard to the bioassay of 'Ultandren ' is discussed