mm 
28 
DR. 1 
RECTUS SUPER. … lo 
(KORRIGIERT) WP See gp « 
Ast EREN 
PPP 
bd 
24 
22 
cf 2 3 4 S 6 ils) 12 20 
° B 90 45 60 75 90 Is Bo 135 iso 165 160 195 210 225 240 255 270 285 300 4s 330 ius zeer 
Fig. 4. 
Only for rotation III (—.—.—.) we find a combined reaction of 
the obliqui and the two recti. 
From this we may safely conclude that, at rotation 1 the labyrinths 
influence almost exclusively the obliqui, at rotation II almost exclu- 
sively the rectus superior and inferior and at rotation III all four 
eye-muscles. j 
We cannot yet enter into details about the curves, but will do 
so afterwards, when determining how far the tonic reflexes of 
the labyrinth on the eye depend on definite parts of the labyrinth 
special of the otolithes. Be it sufficient to indicate here that for the 
oblique eye-muscles the curve of rotation I shows an asymmetric 
course, whereas for the rectal eye-strings the same thing takes place 
at rotation II. 
The exactitude of the former definitions and the measurements 
now performed, may be derived from the comparison of the corre- 
sponding points on the different curves. 
For the three different rotations namely, it occurred several times 
that the same potition of the head was reached from different 
directions. The curve shows that, notwithstanding this, the lengths 
found for the eye-muscles agree wonderfully. 
Corresponding points are among others: 
Normal position. Rotation I No. 1 and 25. Rotation II No. 1 
and 25. 
Back position. Rotation I No. 13. Rotation II No. 13. 
Side position (Left). Rotation If No. 19. Rotation III No. 1. 
Side position (Right). Rotation II No. 7. Rotation III No. 13. 
Muzzle upwards. Rotation I No. 19. Rotation IIL No. 19. 
Muzzle downwards. Rotation I No. 7. Rotation III No. 7. 
For all these positions the four eye-muscles measured have almost 
exactly the same length. 
Conclusions. 
From this and the inquiry published before we may conclude 
