306 THE ALIMENTARY TRACT, ETC. 



and these cells are usually thicker than the surrounding non-ciliated 

 cells. Such cells are found especially near the openings of the ovi- 

 ducts and on the liver. The dimensions of the cells vary ; according 

 to Neumann the average dimensions of ciliated cells on the liver are : 

 0*006 mm. depth (without the cilia) ; nucleus, croi 3 mm. long and 

 0^003 mm. broad. The cells are five- or six-sided and hounded by 

 straight sides (Neumann).] 



