. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 114 CARLOS ALBERTO SALVATORE 7 and 9) ; and two female rats getting mgr. daily for 4 days, total dose equaling 2 mgr. (records 10 and 11). Two female rats (records 12 and 13) acted as controls. After the last injection, slides of vaginal secretion, obtained from all animals, showed diestrum in castrated controls and in those injected with progesterone, and typical estrus in those injected with estrone. The animals were killed 6 hours after the last injection. Fragments of uterine material were fixed on alcoholic Bouin an
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 114 CARLOS ALBERTO SALVATORE 7 and 9) ; and two female rats getting mgr. daily for 4 days, total dose equaling 2 mgr. (records 10 and 11). Two female rats (records 12 and 13) acted as controls. After the last injection, slides of vaginal secretion, obtained from all animals, showed diestrum in castrated controls and in those injected with progesterone, and typical estrus in those injected with estrone. The animals were killed 6 hours after the last injection. Fragments of uterine material were fixed on alcoholic Bouin and mounted on paraffin and sections measuring 10 micra were stained with hematoxylin-eosin. NUCLEAR DIAMETERS. CASTRATE ESTRONE TREATMENT PROGESTERONE TREATMENT AVERAGE OF MODAL VALUE FIGURE 1. Histograms representing the frequency of nuclear volumes. The Karyometric-statistical method was applied according to the same principle used in previous publications (Salvatore and Schreiher, 1947a. 19471); Salvatore, 1948a, 1948b). With a magnification of 1800 diameters, outlines were drawn by camera lucida, 150 nuclei for each sample. Arithmetical means of the diameters of nuclei were grouped into frequency classes; nuclear volumes and modal values were calculated by applying the same formulas used in preceding works (Salvatore, 1948b) and are represented in Table I, together with the mitotic indexes (number of mitoses per 100 nuclei measured).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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