Fig. 17. — The rising water in the flood-plain, March, 1913. Tt was at this 

 point that the writer took the caterpillars from the grass blades and weed 

 stems. Location A, figure 16. 



Pig. 18.---Permiaiient. pool in_±he bottom of a large washout. The ground 

 upon wliich the writer stood in taking the photograph for figure 17 was taken 

 away in the formation of this washout. The same line of fence po.sts shows 

 in both figures. Location B, figure 16. 



