176
H E N R I E T T E HERLANT-MEEWIS
Ant.
Post.
FIG. 15. Eiaenia foetida. Diagram of the experiments on nerve chain bending preceding posterior (A) and anterior (B) transections. (Bailey, 1930, 1939.)
A
B
FIG. 16. Permanent deviation of the nerve cord in Lumbricidae by bending backwards.
A, First operation; B, second operation; C, growth of a small cephalic regeneration bud;
D, absence of a regeneration bud. (Avel, 1947.)
H E N R I E T T E HERLANT-MEEWIS
Ant.
Post.
FIG. 15. Eiaenia foetida. Diagram of the experiments on nerve chain bending preceding posterior (A) and anterior (B) transections. (Bailey, 1930, 1939.)
A
B
FIG. 16. Permanent deviation of the nerve cord in Lumbricidae by bending backwards.
A, First operation; B, second operation; C, growth of a small cephalic regeneration bud;
D, absence of a regeneration bud. (Avel, 1947.)