90 Proceedintjs of the Royal Irish Academy. 



Plate III. 

 Fig. 



1. Low-power drawing of humau corpUB luteum of inenstruation, showing- 



cortex of ovary (c) below which the plicate-looking glandular corpus 

 lies (from h to ct in thickness). The original antrum foUieuli is now 

 organized into two areas — one, ct, containing a wad of connective 

 tissue, the other, cc, containing a coagulable fluid. The theca externa 

 or tunic of the corpus is marked t. At c« is a degenerated corpus 

 luteum or so-called corpus albicans. 

 In the figure below is a low-power drawing of a part of the human ovary, 

 showing the corpus luteum as a protuberance at cl. 



2. Stellate chromophile (theca interna) cells (black) and luteal cells from a 



medullary region of the corpus luteum. Da Fano and Schridde 

 results combined. 



3. One of the theca externa or tunic ingrowths {T), showing the nests (N) 



of little-changed follicle cells and the stellate chromophile cells 

 (black). Da Fano, Safrauin. 



Plate IV. 



4. A stellate chromophile (theca interna, cell surrounded by luteal cells. 



The Golgi apparatus granules of the latter are shown. Da Fano and 

 Schridde results combined. 



5. Spindle-shaped " stellate " chromophile cell, luteal cells, and small spindle 



cell {NU). Da Fano, Safranin. 



Plate Y. 



6 and 7. Tunic edge -.t) and cortex of corpus luteum, showing nest of smaller 

 cells {n] and stellate cells («). 



8. Connective tissue plug or core of corpus luteum {rtix). 



9. Stellate chromophile cells at higher power. 



10. Invasion of old cavity of corpus luteum by leucocytes (6j and fibroblasts. 



