242 S. SAGUCHI 



Liingsseiten der Schlingen dieses Netzes, die sich durch ihre Massivitat 

 imd ihre intensive Farbung auszeichnen, die Wurzeln der Flimmer- 

 haare darstellen, wahrend die Querbalken schwacher ausgebildet sind, 

 infolge dessen sie nicht immer wahrnehmbar ist. 



I have found the so-called cone of fibrils, which is regarded as 

 a bundle of rootlets of the cilia in sublimate-preparations only, 

 but never in Meves-preparations. From this it may be in- 

 ferred that the cone is not a real condition, but an artificial 

 product due to the shrinking effect of sublimate-solution, by 

 virtue of which the rootlets of the cilia adhere into a bundle. 



The mitochondria in the ciliated cells were first noticed by 

 Benda ('99) in the mid-intestine of Anodonta, in the hepatic duct 

 of Helix, etc. He thinks that the rootlets of the cilia are formed 

 of mitochondria or chondriocontes. Fuchs ('02) says that, in 

 the ciliated cells of the epididymis of the mouse, the region be- 

 tween the row of basal corpuscles and the nucleus stains darkly 

 and contains, in Benda preparations, a large number of mito- 

 chondria. Perhaps a dark granular zone found by Lenhossek 

 ('98) in the upper portion of the ciliated epididymis cell is a 

 similar structure. Recently, Meves and Tsukaguchi ('14) 

 have found that, in the cihated cells of the small bronchi, the 

 chondriocontes are accumulated for the mosi part in the super- 

 ficial portion of the cell, some descending beside the nucleus. 



This description of Meves and Tsukaguchi holds good for all 

 the cihated cells I have studied. The chondriocontes course 

 chiefly in the direction of the cell-axis and are especialh^ abun- 

 dant beneath the transparent zone, without entering into it. 



As regards the mutual dependence between the protoplasmic 

 networks and the chondriocontes, I am fully justified in believ- 

 ing that the latter are not free, but are either imbedded in the 

 trabeculae of the former or suspended on it; and, as the chon- 

 driocontes run mainly vertically and are suspended on the like- 

 wise vertical protoplasmic beams, that is to say, on the rootlets 

 of the cilia, it often occurs that the latter are in a great measure 

 hidden by the mitochondria; in fact, it would seem that these 

 structures have not till now been distinguished from each other 

 with certainty. Perhaps such granular or knotty appearance 



