358 



of a region is often associated with variation of an opposite nature 

 at the other end." But in the case I am now considering the move- 

 ment, so to speak, is all in one direction. The occipital bone shows 

 a tendency to extrude one of its vertebral elements; the atlas fuses, 

 and becomes partially assimilated to the axis; the seventh vertebra 

 takes on unusually "dorsal" characters ; the last dorsal vertebra becomes, 

 almost transformed into a lumbar and the last lumbar into a sacral. 

 Thus throughout the whole length of the vertebral column there is a 

 definite hint, slight though it be, of the possibility of a consistent and 

 regular shifting-back, as it were, of every segment by one place. But 

 while it is a relatively simple matter to transform a seventh cervical 

 vertebra into a first dorsal, a last dorsal into a first lumbar or a 

 last lumbar into a first sacral, it is not possible to convert an atlas 

 into an axis — hence the fusion and the partial assimilation. It is 

 not an isolated, localized error of development, but part of a wide- 

 spread indecision on the part of nature as to which somatome was to 

 develope a definite vertebra. 



Elsewhere 1), I have shown that true assimilation of the atlas to 

 the occipital bone is usually merely a part of an extensive trans- 

 formation of the whole cranio-vertebral axis. This case shows that 

 "manifestation of an occipital vertebra" may also be associated with, 

 changes extending throughout the vertebral column. 



Nachdruck verboten. 



Eine einfache Schnittserienmethode bei der Celloidineinbettung.. 



Von Prof. B. Suzuki in Kyoto, Japan. 



Allgemeine Klage ist es, daß die Celloidineinbettung wegen der 

 Schwierigkeit bei der Herstellung der Schnittserien trotz ihrer vortreff- 

 lichen Eigenschaft mit dem Paraffin wenig konkurrieren kann. Um 

 diesen Nachteil zu beseitigen, wurden von manchen verschiedene 

 Methoden angegeben; aber bis jetzt kennen wir keine einzige sichere 

 und einfache Methode. 



Die erste und allerwichtigste Bedingung bei der Herstellung der 

 Schnittserien überhaupt ist die Erhaltung der richtigen Reihenfolge der 



1) The Significance of Fusion of the Atlas to the Occipital Bone, 

 and Manifestation of Occipital Vertebrae. Brit. Med. Journ., 1908, Aug. 20, 

 p. 594. 



