( 312 ) 
The first thesis, then following directly from the experimental 
facts, is this: 
Ist. The mutual overlapping of the dermatomata, must extend 
farther than half-way. 
Two cases may present themselves here. 
a. Either the central areas don’t touch one another, or 
b. They do touch one another. 
4 
3 
= --+--- mejor O4 
L 4 6 
/ J 5 P 
5 e= . ahd ee ae te 
ma ' 2 ; 6 1 
Fig. 18. The ranks of the dermatomata towards the mid-dorsal line if they overlap 
one another halfway. 
a. if the central areas don’t touch one another. 
b. if they do touch one another. 
ws central areas --- marginal areas. 
In both cases (see fig. 13a and 135) the destroying of a derma- 
toma denudates the non-overlapped marginal areas of the precedent 
and of the following one. Analgesia must be the consequence and 
would be contradictory therefore to the first fact. 
If on the contrary one dermatoma was isolated, e.g. the fourth, 
by taking away the 24, 3rd, 5th and 6% the gap, made analgetic 
by non-overlapped marginal areas became twice as large as the 
isolated central area (fig. 136) or even larger (13 a). 
The second thesis which follows immediately is: 
gnd, Even if the overlapping extends farther than halfway, the 
ranks of dermatomata must be filled more thickly, than would be 
consistent with mutual contact of the central areas, without their 
overlapping one another too. 
raken + — ow ween J 
Fig. 14. The ranks of the dermatomata towards the mid-dorsal line, if the 
central areas touch one another, the overlapping extending farther than 
halfway. In isolating the 4th dermatoma, the analgetic area becomes 
equivalent to double the sensible area. 
m= central areas --- marginal areas, 
