( 1160 ) 
cases where anomalies in the construction of the skeleton of the 
vertebral column produce alterations in the dermatomery and in 
shape, situation, and extension of the strychnine-segmental-zones. 
WINKLER and vaN RIJNBERK in the course of their experiments have 
met with one case (dog 19), where the dermatoma of £. IV presented 
a shape diverging from the “normal”, because in contrast with their 
other cases of isolation of this skin-area, it sent a narrow linguiform 
branch on the medial surface of the nether-leg'). (Fig. XXIV and XXV). 
It was therewith characterized as it were as a transition form 
between a LIV and LV dermatoma. At the autopsy the dog was 
found to possess only 6 lumbar vertebrae, so this presented a case 
of so-called “prefixion of the extremity” (SHERRINGTON). 
In one of my cases (str. dog XIV) where I had applied strychnine 
on the +k lumbar segment, I found a zone shaped nearly identically 
to that observed by WINKLER and van RIJNBERK in the case of 
isolation of the £. IV dermatoma, described above. See Fig. XXVI 
and XXVII. This dog was likewise found to possess only 6 lumbar 
vertebrae. 
a 
w) 
Fig. XXVI. Fig. XXVII. 
L. IV. Prefixion of the extremity. L.1V. Prefixion of the extremity. 
Besides in this respect, this experiment is still interesting in 
another way. 
On page (439) 9 of their VII" communication the authors repeatedly 
as regards the metamere skin-innervation, so that practically there exist numerous 
intermediate forms. Among my results I find likewise several data, supporting this 
conception. But speculations on this point, however interesting and important for 
the question of the dermatomery, would lead me too far here. 
1) WINKLER and vAN RiJNBERK, VIth communication le. page (321) 15. Fig. VIII. 
