(773) 
circumference of p‚ whose distance from B does not exceed ¢,, then 
we suppose «, to be so small that, independently of the choice of 
U, in all points whose distance from the cireumference segment 
BU is <382¢,, the length of the transformation vector is > 64 €,, whilst 
of an are of simple curve < 32 ¢,, running between two accessible 
points of the circumference of p,‚ if one of its endpoints belongs to 
the circumference segment BU, the image and the counterimage do 
not intersect each other. ; 
Let C be an aceessible point of p lying beyond Y for a positive sense 
of circuit, and possessing from 6 a distance < p, and BT Et 
Let S, be the first positively directed circumference Sehnitt not 
preceding £6, past which up to A all accessible points of p can be 
reached from the infinite along paths not meeting the straight line 
segment BC. 
We then choose (see fig. 4) on the polygonal line ®, an arc DZ, 
in which the distance of the endpoints is Se, and the distance of 
two arbitrary points is < 16e, in such a way that from D, and L, 
Vig, 4. 
