MEASUREMENTS OF STRUCTURES OF OVARY. 207 



which the observations coincidently undertaken by Koster (60) agree 

 in all essential particulars. 



In order to give a better general view I subjoin a small table with 

 the measurements of the more important structures of the ovary 

 above alluded to, according to the statements of Henle, Kolliker, Frey, 

 and v. la Valette ; they refer especially to the ovary of Man, and the 

 numbers indicate micro-millimeters (thousandths of a millimeter). 



Superficial epithelium of the ovary, newly born Child, length 15 18. 



breadth 56. 



of the adult . length 1215. 



breadth 56. 



,, of an old Cow length 912. 



Calf . 12-15. 



,, Sow . ,, 1520. 



Size of trans- 

 verse section. 



Primordial follicle, human embryo at the seventh month . 30 100. 



Smallest follicle of the adult Woman 3040. 



Mature follicle . ; 10,000 12,000. (10 12 mm.) 



Smallest follicle of the Fowl 2436. 



Follicular epithelium (adult Woman) ..... 15 22. 



,, ,, of Fowl in follicles of 3 6 mm. in dia- 

 meter 2430. 



,, ,, of Fowl in mature follicles . . . 6 8. 



Primordial ovum of human embryo at third month . . 11 14. 



,, ,, ,, at seventh month . . 15 25. 



Smallest ova (adult Woman) 26. 



Mature ovum of adult Woman . . . . . . . 200. 



of Bitch 180. 



,, ,, of Guinea-pig 120. 



Zona pellucida of mature human ovum . . . . . 10. 

 Germinal vesicle of human embryo at third month . . 9 11. 



,, ,, ,, at seventh month . . 10 14. 



,, ,, ,, of mature human ovum . 45. 



Germinal spot of human embryo at third month ... 2. 



,, ,, of mature human ovum . ... 7. 



5, of quite mature embryo of a Sheep . . . 5 8. 



of a Kitten seventeen days old . . . . 3 5. 



