614 Sergius Morgulis 
In Table VIII are recorded the number of segments removed, 
remaining and regenerated; the average of each and the ratios 
of the regenerated to the old segments remaining after the opera- 
tion. 
TABLE VIII 
Fuly 23 to August 7 (1907) 
A, B, Cc, 
n a a 
E | é Es El 
& el < & ft 
S£aq| $2 |SeF/Ska, SZ \/SkeiSEa| 2 sze 
aoe ~ w 2 BAIS % A as a) en oe % A me & 
& so aha Ap s RR s ° ao A Ss 3) so (ec) Has 
aoe) 28 (988) 898) Be oe ey ee ee eee 
Gehl 5S |baee| SES) 6 6 4) bia Boe 2 levsece meee 
Z Z Z Z Z z Z Z Z 
2h 15 5 15 25 4 9 sie “ 
20 19 6 II 26 4 10 30 4 
22 | 18 9 15 23 7 9 30 5 
ZT ko 9 II 20 8 9 30 5 
23 17 10 17 20 9 9 27 aay 
20 17 II 16 15 9 9 24 7 
23 TS er 17 187) ) 310 10 27 8 
21 15 12 14 19 10 9 24 8 
II 14 II 9 27 9 
Average no. of ; | | ‘ | 3 
sepments 21.4 16.9 9.1 | 14.1 | 20 9.2 PineG) 33 
Ratio of new to | 
54.1 per cent 40 per cent 22.9 per cent 
old segments 
Expressing these ratios in percentages they are, for the worms 
of the first group, 54.13 for those of the second, 40, and for those of 
the third group, 22.9. Comparing these results with similar ratios 
between old and regenerated segments found in Groups A, B 
and C of the control (see Table I) it is evident that there is an 
increase in the number of regenerated segments in each of the 
three groups. ‘The increase amounts to nearly 14 per cent in 
the first group, nearly 13 per cent in the second group, and nearly 
7 per cent in the third group. ‘Therefore, it may be said that on 
the average for all three groups to every 100 old segments in 
fed worms approximately II more new segments were regener- 
