LEPIDOSIKEN PARADOXA. 
125 
Text-fig. 28. 
A. Trciiisverse section tlirongli the heart showing syncytial condition of 
the endocardium and free cells being separated from it. b. Section 
transverse to aorta at Stage 23 showing vacuolation and fusion of the 
endothelial cells with corpuscle about to be shed into the lumen of 
the vessel, c. Sagittal section through heart at Stage 26, showing 
corpuscle being shed from the endothelium, d. Right sinu-auricular 
angle. Endothelial cell being shed into lumen of heart, ao. Aortic 
endothelial cells, h. c. Corpuscle, en. Endocardial syncytium, en. 
Endothelium, liij. Hypocordal cells, my. Myocardium, n. Xoto- 
chord. y. Yolk. 
