384 THE PINEAL ORGAN 



processes of the pineal cells are more typically club-shaped and the cells 



usually give off several processes each of which terminates in an expansion. 



At a later period of foetal development, and especially at about the 



Fig. 262. — Footplate of Neuroglial Cell attached to Sheath of Blood 

 Vessel : Rabbit. (After Penfield.) 



The drawing shows two rows of cells of the oligodendroglia type ; these are 

 situated between myelinated fibres of the cerebral white matter. One large fibrous 

 astrocyte is seen above two oligodendroglial cells. Gliosomes stained by the 

 method of Del Rio-Hortega are seen in relation with the cell-bodies and processes 

 of both types of cell. 



time of birth, small cells with few and slender processes are developed 

 between the medullated fibres of the white matter in the brain and spinal 

 cord. These are termed oligodendrocytes, and their small round nuclei, 



