sacral dermatome, which covers the 4 toe entirely and the 3rd toe 
partially. We have here consequently a serial shifting of all the 
dermatomes, amounting to somewhat less than the width of one 
dermatome. The structure of the plexus pointed here likewise to a 
distinct, postfixed design of the extremities.: 
The sensitive fields of the skin of cat 35 furnished still a pecu- 
liarity which I wish to discuss here in a few words. The first sacral 
segment of this cat would point to a post-fixed design of the leg, 
whilst the 4% lumbar segment would suggest a prefixed design. The 
entire exterior rim of the foot and the 4* toe falls inside the field 
of sacralis 1. This points to a post-fixed design of the hindleg. The 
sensitive field of lIumbalis 4 has a slip at the innerside of the leg 
reaching as far as the place where the calf muscles end and the 
tendon of Achilles begins. 
This field possesses consequently properties of the 5'h lumbar 
segment and would point to a pre-fixed design of the extremities. 
The question rises, if we have here to do with a more widened 
design of the hindleg. With certainty I can, with the determination 
of these fields, exclude, that these deviations could have been caused 
by a not ‘exact local moistening of the spinal cord with the solution 
of strychnine. I happened to determine the fields in this succession : 
lumb. V, VI, VII, sacralis 1 lumbalis IV. When I determined thus 
sacralis 1, the 3 preceding lumbar-roots had been cut, and the 1st sacral 
segment could consequently not obtain here the properties of the 
7 lumbar-segment, because the spinal cord had not been locally 
moistened there. This is likewise the case with the field of lumbalis 
IV. When this was determined the V' lumbarroot had been cut, 
and consequently the 4" lumbar segment could neither obtain pro- 
perties of the 5th segment here, on account of the fact that the 
spinal cord had not been sufficiently locally moistened. 
The 3 segments between these two fields offer few deviations. 
The relations in the plexus are again of such a nature, as we 
find them at post-fixed design of the hindleg. The N. Ischiadicus 
originates again from the 7 lumbar root and the 1st sacral root, 
and receives likewise rootbundles from the 6' lumbalis and the 
2nd sacralis. The 1st sacralroot is thicker than the 6 jumbarroot. 
I suppose I ought to describe this case as accurately as possible. 
It may be of use to continue to pay attention to the fact, that the 
possibility of a widened design of the extremities can exist. 
WINKLER and vaN RIJNBERK supposed likewise in 1910 in their 
investigations concerning the overlap of the dermatomes of the hindleg 
of dogs, that they had found indications of this fact. 
