. Journal of morphology. ursa. Fig. 20. The same seen from in front; the glandular sperm sac is as before. Fig. 21. Transverse section of a vas deferens, showing the muscle cells andlining epithelium. Haem. X 840. Fig. 22. Transverse section across the glandular sperm sac. Osmic acid andalum cochineal. X 500. Fig. 23. Section through the point of union of the glandular and muscularsperm sacs, showing the abrupt change in the character of the epithelium, and thetermination of the circular muscle coat. The section cuts the muscular sac trans-versely and near the side; and the
. Journal of morphology. ursa. Fig. 20. The same seen from in front; the glandular sperm sac is as before. Fig. 21. Transverse section of a vas deferens, showing the muscle cells andlining epithelium. Haem. X 840. Fig. 22. Transverse section across the glandular sperm sac. Osmic acid andalum cochineal. X 500. Fig. 23. Section through the point of union of the glandular and muscularsperm sacs, showing the abrupt change in the character of the epithelium, and thetermination of the circular muscle coat. The section cuts the muscular sac trans-versely and near the side; and the glandular sac longitudinally and almost throughits axis, ge, glandular epithelium; e, non-glandular epithelium; m, muscular coat;/, peritoneum. Fig. 24. Vertical transverse section of the copulatory bursa, through theglands. The penis is abnormally retracted. Borax carmine. X 500. g, g, bursalglands; e, epithelium; Im, Im, longitudinal muscle coat; tm, circular muscles;^e, penis. Journal of\ Vorpho/oc/i/ J ol. -1 538 /. PERCY MOORE. EXPLANATION OF PLATE XXXL Fig. 25. Terminal portion of one of the anterior pair of vasa deferentia, froma preparation of the fresh material. X 500. ml, ml, limit of muscular layer, be-yond which point are seen epithelial cells only; mn, nuclei of muscle fibres;/, lumen. Fig. 26. Oblique section across the upper part of the copulatory bursa, ap-proximately through the plane indicated by a, a in Fig. 19, and b, b in Fig. 20,from a preparation stained in Kleinenbergs haematoxylin. X 500. The rightside of the figure reproduces the camera tracings unchanged, the left attempts todepict the appearance of the section. Im, longitudinal, and tm, circular musclecoats; be, epithelial lining of bursa, passing into the glands at two opposite points;Po, outer coat of the projecting end of the retracted penis {Po is made up of epithe-lium, circular, and longitudinal muscle fibres just above the plane of the section,but these were obscure in the specimen fi
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Keywords: ., bookcentury1800, bookdecade1, booksubjectphysiology, bookyear1887
