1905.] the Interstitial Cells of the Ovary in the Rabbit. 



48 



Diameter just before 



birth, at 28th or 



29th day. 



mm. 



0-0288 



0-0315 



0-0270 



0-0297 



0-0288 



0-0315 



0-0288 



0-0306 



0-0315 



0-0306 



Average = 0'0298 mm. 

 = 29-8 fi 



Diameter a few hours 

 after parturition. 



0-0270 

 0-0279 

 0-0279 

 0-0270 

 0-0270 

 0-0261 

 0-0252 

 0-0279 

 0-0270 

 0-0279 



Average = 0*027 mm. 



0-2988 



Diameter after 



3 days' lactation. 



mm. 



0-0270 

 0-0252 

 0-0279 

 0-0270 

 0-0270 

 0-0252 

 0-0279 

 0-0261 

 0-0270 

 0-0279 



Average = 0-0268 mm. 

 = 26-8 fi 



0-2709 



Diameter after 



6 weeks' lactation. 



mm. 



0-0180 

 0-0171 

 0-0162 

 0-0180 

 0-0171 

 0-0153 

 0-0180 

 0-0171 

 0-0162 

 0-0180 



Average = 0'0171 mm. 

 = 17-1 ft 



0-2682 



0-1710 



Tabulating these results, one gets 



Approximate age of pregnancy. Diameter of cells in 



0(= normal) 17'0 



14th day 23-4 



18th 27-2 



20th 31-9 



22nd 32-6 



27th 31-8 



Shortly before birth 29-8 



after 27'0 



3 days 26'8 



6 weeks 17'1 



