496 Charles Zeleny 
5 Differences in the Level of the Cut. Because of the presence 
of a breaking joint in the chela no differences in level existed. 
6 Additional Injury. Crayfish with additional injuries in any 
part of the body were discarded. 
7 Temperature. Individuals belonging to different sets were 
alternated in their positions on the table and all the dishes were 
grouped together. In changing water the same amount of water 
was put in each dish. 
TABLE 11—CaMBARUS BARTONI 
One chela removed 
First and third regenerations compared in periods 5-6 and 5 to 7. First and fourth regenerations 
compared in other periods. 
| 
| 
| FIRST REGENERATION THIRD OR FOURTH REGENERATION 
| q | 
v2) te | 
~~ ea wu 
8 A £ | cs] | g ne] 
= & co os ° i op | 3 aS Os 
Be A a nH oO |: ro} q w Sy ro) 
z Oo o - | & | Oo | ae. 2 o 
= < PERIOD _ rp pay) vay aS qs a » 
< eS By PE [ee | ag 3 acy ee) a ¢ 
A Q | SS =z | ete ts} art) OS a mete) 
26 S| eS |e) Seas = eu eulikc O=s 
oo PRI ar eat ae = d= a 5 Ss |: Gos 
a fo) Ss a|s | @ 8 fe} oS & |s So 
2 G ara Oy et qa | ee ll oe a 
| - ais Oo 2l a o c=) +e) es Otol 8 
| = to O B P| Sb —= | € & || Be) sa meg 
| ri a &% S| 8 o 3s a Xo S|) tay 
| g oO coy sch = & | ge oS epee 
| 4 | 64 n eH oF ecmennt) <> 
! 
SaRRnEE SEMI: TASS ce ae ) = 
II.3 ae) 265) 0.479), Tt. | 4.2 24 | 0.38 
| 
| 11.7 | 5-7 | 30 | 0.49 | 11.0 ree 31 | 0.48 
Ist and 3rd { |5to6........ 12.4 4-4 | 20 | O:36)), 1-3 4:6 | "23> Foran 
len On21 11.6 
I 
= 
Ist and 4th 
Wshand 3rd <k'to7....2- ne 
