Smithsonian Report, 1893. 



Plate XXIII. 



1. Snake Creeping. (Succession of figures from left to riglit.) 



3. Eel Swimming. (Succession of figures from right to left.) 



\m'^%^^*^*'*'*^'^^' 



3. CoLEoPTERUs Insect Walking. (Succession of figures from left to right.) 

 (Reproduced from "La Nature.") 



