( 1162 ) 
WINKLER and RiNperk, retaining withal the criteria of the definitions 
of Bork and SHERRINGTON, specified as ventral axis-line the line 
going from the symphysis over the medial surface of the extremity 
towards the malleolus medialis, passing in its course over the point 
situated in the middle between epicondylus femoris and fossa poplitea. 
Now this line is identical with the demarcation-line between the 
strychnine-segmental zones of II, LUI, and LIV on one hand and 
of SI on the other, as described in the foregoing. 
And this case of my Str. dog XIV gives still further confirmation 
of that accordance, because it bears testimony (see fig. XX VII) that 
is°. in cases of prefixion of the extremity the strychnine-segmentalzones 
too, like the dermatomata, are removed (apparently) caudalward on 
the extremity, 2°¢. that this removal obviously takes place along the 
demarcation-line that was proved to be the homologon of the ventral 
axisline for the dermatomata. (See fig. XXIX). 
Still in another respect 1 may point to analoga, even to identity. 
In one of their first communications on the dermatomata the authors 
quoted above have demonstrated that each filum radiculare of a 
posterior spinalroot contributes to the innervation of the whole der- 
matoma, founding this statement on the fact, that if from a pair of 
successive posterior roots either only the cranial or only the caudal 
fila radicularia were cut through, they never found a zone where 
sensibility was destroyed, but on the contrary an area, corresponding 
in extension with the number of posterior roots that were cut through 
partially, presenting a uniform hyperalgesy. 
In the course of my strychnine experiments I met with a similar 
fact. It is not only the poisoning of the dorsal surface of an entire 
seement that gives rise to the appearance of the strychnine-zone 
characteristic for this portion of the spinal cord, but also if the 
alkaloid is applied on part of it, e.g. on that part where the 2 cranial 
fila radicularia enter, the strychnine-segmental-zone is seen to appear 
in toto. And that this zone appears to its whole extent, is proved 
moreover among others by the fact that it does not increase in size 
if afterwards the strychnine is applied too on the remaining portion 
of the dorsal surface of the segment. 
Where the accordance existing in shape, situation, and extension 
between the dermatomata defined by the isolation-method and the 
strychnine-segmental zones found by this strychnine-method, is so 
striking, it proves the truth of a presumption that obviously was 
ours from the beginning, viz. that these strychnine-segmental-zones 
present skinfields, identical as to the said attributes, shape, situation 
and extension, with dermatomata. 
