Thesis (Ph. D.)--University of Chicago, 1903. / Plates printed on both sides. Reprinted from the American journal of anatomy, v. 3, no. 2, p. [89]-146. Bibliography: p. 53-56.

After vasectomy, the passage of sperm antigen through the epithelium of the efferent duct in the rhesus macaque probably results in immune complex deposition. Immune complexes can be visualized in the thickened basement by fluorescence microscopy. Subsequent electron microscopic evaluation, with the appearance of electron-dense deposits in the basement membrane of the efferent ducts, substantiates these findings.