( 13 ) 
starting point. For even if in this case the initial linear part 
was followed by a parabolic distention-curve, as was found for frog- 
muscles, yet this part of the curve must be modified by the influence 
of the elastic after-phenomenon. As now this elastic after-phenomenon 
is not to be eliminated under the conditions of the experiment, the 
question which we have raised, must be left undecided for the present. 
The curves were recorded in sets of three, while the time between 
the successive curves was noted down. The curves of a same set, 
which may be indicated as Ist, 2nd and 3rd, according to their suc- 
cession in time, may be mutually compared; but what took place 
between the successive sets of three curves was not noted down. 
The values of A and B, as they are determined from the dis- 
tention-curves follow in three tables. 
BAB Lel Me 
Experiment of 6/XII 1900. 
| 9. 12. | 15. 18. | 21. 
A sé 107 87.3 74.6 | 84.8 69.9 | 62.5 
Ist curves 
BX 10° —_5.1 —2.6 —5.5 —2.7 —2.7 
lite 14. fe 20. 23. 
A 105 97.5 100.5 84.6 78.1 84.1 
IInd curves | 
Bei 10° —6.8 —7.8 5.8 —5.3 —6.1 
ea De A VEL. 
Experiment of 4/XII 1900. 
7 13 19. 29 
Are 10° 104.5 107 95.7 127-5 
IInd curves 
BS 10° 6.2 —.1 —6.0 —10.9 
8. oe. 26. 
AS21065 103.9 120.1 118.8 
IIIrd curves 
BS 10° 60 —{0.9 —8.9 
