1917] 



Mead: Notes on Emerita Analoga 



433 



Fig. 1. ■ Level plat near the water, showing the migrations of animals towards 

 the water. 



Fig. 2. Level plat 200 feet from the ocean, showing the persistent migrations 

 of animals towards the water. 



Fig. 3. Same as fig. 2, excepting that the animals used had been gyrated 

 immediately before the experiment'. 



Fig. 4. Same as fig. 1, excepting that the animals in this experiment had 

 their eyes removed. 



Fig. 5. Plat with a 7 per cent slope away from the ocean, shelving no special 

 direction tendency. 



Fig. 6. Drawing of under-water labyrinth. 



