152 THE PHYSIOLOGY OF REPRODUCTION 



K..llikM.' van der Stricht.- Si-it/.. :: Loeh, and certain other writers, 

 whose results are for the most part in general agreement. The 

 degenerate follicle in the cow has heen described by Delestre. 4 



Schulin, and also Janosik, appear to regard the follicular epithelial 

 cells as being converted into leucocytes, which they undoubtedly 

 resemble when undergoing degeneration. Klrnmiing, on the other 

 hand, denies the existence of leucocytes, pointing out that none exist 

 in the theca, and Schottlsinder clearly distinguishes degenerating 

 epithelial cells from leucocytes. 



. I."). Section through follicle in late stage of degeneration. (From 

 Sellheim.) The cavity is in process of being filled by an ingrowth of 

 tissue from the wall. The ovum lias disappeared. 



More recently, however, Dnbuiason 6 has stated that in the 

 sparrow the follicle-cells may multiply and act as phagocytes to 



1 Kolliker, "['I..'!- Corpora Luten Atreti 



-..<-//.. in Ki.-l, L898. 



* Van der Sti-irht. "I. \'i ; >\ul;tirr. 

 Bonp, l!M. 



. "l>if |-'..llikt-l.iti.-i.- u iln.-iid dc 

 . v.,1. l\\\ii.. 



i l>ci S&ugethieren," !''////"/. </. 

 i.-.." Verluuul. ,/. .\,,,,t. r,v.sW/., i n 



S.-liwangeiscli.-ift. el,-.." ,i r ,./,. /. 



1'ovule, etc..' .I,,.// I. xxxiv., \<HM ; and Asiini, "Observations on 



Folliculai ./. \ol. \\iii.. I! (I'M. 



" Diihiii-son. "('..ntrihution a I'Ktude du Vitolliis." .\r<-/,. <l- '/.nnl Efner 

 vol. \., :,th 



