Fig. 8. A portion of a Leydig cell, including a little of the nucleus (N) 

 and an adjacent area of cytoplasm containing many minute vacuoles, 

 several mitochondria (M) and a few large homogenous lipid droplets 



(L) believed to consist of neutral fat. 

 Fig. 9. A representative area of Leydig cell cytoplasm containing mito- 

 chondria (M), homogeneous droplets of lipid (L) and intensely osmio- 

 philic aggregations of pigment (P). The latter are comprised of dense 

 granules of varying size, often associated with vacuoles of homogeneous 

 osmiophobic material, possibly mucoprotein. 



facing page 92 



