. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PS M --. 8 PLATE IT Fi<;. 7. Cross-section of testis of control animal which had its pituitary gland exposed but not removed on April 24 and was killed June 11. X 80. C, cortical cysts with cells which are dividing rapidly ; ST., spermatozoa. 8. Cross-section of testis of animal hypophysectomized April 24 and killed June 11. X 80. I'S. primary spermatogonia; M, medulla of testis. With the exception of minor individual variations, differences in the microscopic appearance of the testes of these animals as compared wi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PS M --. 8 PLATE IT Fi<;. 7. Cross-section of testis of control animal which had its pituitary gland exposed but not removed on April 24 and was killed June 11. X 80. C, cortical cysts with cells which are dividing rapidly ; ST., spermatozoa. 8. Cross-section of testis of animal hypophysectomized April 24 and killed June 11. X 80. I'S. primary spermatogonia; M, medulla of testis. With the exception of minor individual variations, differences in the microscopic appearance of the testes of these animals as compared with those of controls are much the same as those already described. The testis of all the hypophysectomized animals show only primary sperma- togonia, a few scattered secondary spermatogonia and either very few spermatids and spermatozoa or none at all (Figs. 7 and 8). It might be noted, however, that in all these animals the primary spermatogonia are dividing, even in the one case from which the pituitary gland had been removed 206 days previously. The data for hypophysectomized females are at present very scanty. As in the male, there is little change in weight of the female gonad in. 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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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
