BRIEF note was published in 1940 (WHITING) concerning the influence of A temperature on X-ray sensitivity of different meiotic stages in the Habrobracon oocyte. Unmated females were kept at O"C, 13"C, 25"C, and 35OC for one hour before and one hour after irradiation. During a one half minute of exposure to 212r, they were at room temperature. For oocytes in first meiotic metaphase (metaphase I)...