1 62 MAYNIE R. CURTIS. 



Explanation of Plate II. 



Fig. 2. Natural size photograph of the large peritoneal covered mass of egg 

 membranes shown at the lower right hand corner of Fig. i. This is cut across and 

 opened back to show its composition. 



Fig. 3. Photograph (greatly reduced) showing the oviduct of the bird from 

 which the eggs in Fig. i were taken. A =funnel; S=albumen secreting region; 

 X= isthmus ring; C= isthmus; D= blind end of the oviduct; E=mass of smooth 

 muscle in ventral ligament posterior to the end of the oviduct. 



