' HISTOI.OGY OF THIJ OVIDUCT O^ THEJ D0ME;STIC HE^N. 429 



First Plate. 



Figure 453. Photograph of the funnel region of a functional oviduct 

 showing the expanded lips, the thin walls with their small longitudinal 

 spiral folds and the region of transition to the albumen region, xi. 



Figure 454. Photograph of a portion of the albumen secreting region 

 showing the thick longitudinal folds. From the same oviduct as figure 

 453. xi. 



Figure 455. Photograph from the same oviduct showing albumen por- 

 tion above and isthmu? below and also the line of demarcation between 

 these two regions, xi. 



Figure 456. Photograph from the same oviduct showing the expanded 

 uterus and the narrow vagina, xi. 



Second Plate. 



Figure 457. Transverse section of the oviduct wall in the region of 

 the funnel lips. X30. 



Figure 458. Transverse section of the oviduct wall in the region of 

 the funnel neck showing primary and secondary folding of the epithe- 

 lium. X 30. 



Figure 459. Transverse section from the region of transition from 

 funnel to albumen portion. Note the presence of a few tubular glands 

 which are entirely absent in the region anterior to this. Muscular lay- 

 ers are not shown. x6o. 



Figure 460. Section of an epithelial gland from the funnel region. 

 (Cf. figure 462.) x6oo. 



Figure 461. Section of a typical gland from the funnel region. x6oo. 



Figure 462. Transverse section of the oviduct wall from the albu- 

 men secreting region. Note the very thick layer of tubular glands. X30. 



Third Plate. 



Figure 463. Transverse section of the epithelium from the middle of 

 the funnel region. Note pouch like glands from which the ciliated cells 

 are absent except at the center. The epithelium over the ridges has sev- 

 eral rows of nuclei. X300. 



Figure 464. Section of the epithehum from the region of transition 

 from funnel to albumen portion. This section shows the formation of 

 the tubular glands. X300. 



Figure 465. Section from the albumen portion showing the opening 

 of a tubular gland, also the character of the gland cells and of the 

 epithelium. From an actively secreting oviduct. x6oo. 



•Figure 466. Gland cells from the tubular glands in the albumen 

 region showing large dark staining granules, xiooo. 



Figure 467. Section of epithelium from the albumen region showing 

 ciliated cells and unicellular glands, xiooo. 



Figure 468. Transverse section of the wall of the uterus. X30. 



