STRUCTURE OF THE WALL OF THE LABYRINTH. 



105 



were they bridge over the furrow. I presume, however, that 

 the two rows are not connected with those of the opposite side 

 by means of their stalklets, but that the cells are only in con- 

 tact and adherent to each other. If a similar spot be struck in 



Fig. 308. 



Fig. 308. A, Transverse section of the membranous semicircular 

 canal of Salmo hucho. 1, Thick portion of the wall of the canal, with 

 a groove upon its outer surface ; 2, thin attached portion of the 

 wall ; 3, p avement epithelium ; 4, fine fibres proceeding from 5, the 

 series of cells ; 6, a furrow between the two rows of cells. 



B, Highly magnified fibres and cells, isolated ; 7, protoplasm, from 

 which the fibres (8) take origin ; 9, cells to which the dividing fibres 

 become attached. 



transverse section, the structure in question presents the ap- 

 pearance of a complete canal ; and if an attempt be made to 

 move it mechanically under the microscope, it may be seen 



