1 88 MUNSON. [Vol. XV. 



radially arranged granules, immediately surround the small cen- 

 tral body. The radial structures are then often limited by a 

 broader or thinner zone of concentrically arranged fibers — the 

 whole being conspicuously differentiated from all the rest of 

 the cytoplasm (PI. XIV, Fig. 53 ; PL XVI, Fig. 100). The 

 outer concentrically arranged fibers may be absent, and the 

 center may be a mass of granules surrounded by short, stiff, 

 radial rods that penetrate unequally into the central granular 

 mass. In the Biondi-Ehrlich stain, the central granules are 

 yellow, while the radial rods are conspicuously red, the whole 

 being definitely limited and sharply contrasted from the rest 

 of the cytoplasm (PI. XV, Fig. 80). In this case three bodies, 

 connected by dense cytoplasmic fibers, are seen in the neigh- 

 borhood of the spherical body ; and from this the cytoplasmic 

 fibers, arranged radially, can be seen to extend to the periphery 

 of the egg, where they become continuous with the peripheral 

 layer of fibrous protoplasm, thus rendering this portion of 

 the egg peculiarly different from other portions of the same sec- 

 tion. Instead of the radial rods and the three neighboring 

 bodies, a comparatively large vesicular body, consisting of 

 granules surrounded by a very distinct thin wall or membrane, 

 has been observed. In this case only one body existed in its 

 vicinity; and, as in the case above, the cytoplasmic fibers had 

 a similar arrangement. 



Occasionally a number of refractive bodies are to be seen 

 at the apex of a cone of fibrous protoplasm, whose base is con- 

 tinuous with the peripheral protoplasm (PI. XV, Fig. 90). It 

 may also take the form of an oval sphere of interwoven fibers, 

 enclosing in its meshes refractive bodies, and joined to the 

 peripheral zone of fibrous protoplasm by a narrow stalk of 

 similar fibrous protoplasm (PI. XV, Fig. 84). Occasionally two 

 refractive bodies removed from each other, but connected by a 

 band of fibrous protoplasm, can be seen. From each of these 

 refractive bodies, bundles of radial fibers extend far out into 

 the cytoplasm, which is sharply contrasted from it. The body, 

 when stained in Ehrlich's haemato.xylin and eosin, is also seen 

 to consist of a central sphere of yellow granules, which is 

 surrounded by a bright-red, homogeneous, fibrous, protoplasmic 



