Fig. 5. (Upper figure.) Experiment 48, illustrating Type III, in a case 
where the period of irregularity is influenced, apparently, by the preceding asym- 
metry. It should be observed that the reactions were taken rapidly during the 
period of a.symmetry and irregularity. 
Fig. 6. (Lower figure.) Experiment 162. The embryo from which this 
record was made was, on the whole, the most irregular specimen of my series. 
Still, after the period af asymmetry there is a marked general tendency to move 
the head away from the side touched. 
For further data see Table, p. 92. 
