142 KIYOYASU MARUI 



must be called to the fact that in my Levaditi preparations and 

 Heidenhain preparations of formalin material the meshes of the 

 Golgi net were free from anj^ formation or granule, which could 

 be homologized with the neurosome conglomeration of Held. 

 As the figures (6 and 11), produced from a Levaditi preparation 

 of Carassius, show, the cell-body is covered by a net-work, whose 

 nodal points are considerably thicker than the beams and appear 

 as deeply brown-stained spheroidal points. This net-work 

 passes directly into the net structure of the 'axone cap,' which 

 is itself continuous with the Tiillnetz' of Bethe. There can be 

 no doubt that this net-work is the Golgi net. The meshes of 

 this net-work are free from any further material, as the figures 

 clearly indicate. In the axone cap, too, we cannot find any 

 content in the mesh of the net-work. Above all, stress must be 

 laid in these figures (6 and 11) upon the fact, that numerous nerve 

 fibers, which have lost their myelin sheaths at the border of the 

 'axone cap,' run toward the surface of the cell, always keeping 

 their place along the beams of the net-work. Moreover, we find 

 the nodal points of the net-work here and there showing round 

 brown and thick points, which could well be interpreted as the 

 cross-sections of the nerve fibers, running along the beams of the 

 net-work. Now and then we find a cross-section of a nerve 

 fiber, which looks as though it lay isolated in the mesh of the 

 Golgi net, but through careful observation with continual rota- 

 tion of micrometer screw we realize that it is connected with the 

 neighboring nodal points of the net-work by means of delicate 

 yellow threads. On the surface of the Mauthner cell we also, 

 find occasionally in the mesh of the Golgi net a certain granule, 

 which might perhaps be homologized with the neurosome con- 

 glomeration of Held. This granule, which is seemingly an iso- 

 lated round particle, but in reality a star-shaped structure with 

 radiating beams, does not lie in the mesh of the net-work, but is 

 found in a level different from that of the neighboring net beams, 

 and with careful observation it is, at least at times, found to be 

 connected with the Golgi net by means of the radiating beams. 

 In the Heidenhain preparations of formol material a similar 



