ILLUSTRATIONS 



Plate III 



Fig. 1. Vertical section through the center of a termite nest. The white 

 strip of paper in the left of the picture is 50 centimeters in 

 length. In the center of the nest is seen a compact structure 

 with numerous passageways. This structure contains the queen 

 cavity. 

 2. Vertical section through the peripheral part of a termite nest. 

 The cones are seen very plainly in the cavities. 



Plate IV 



Fig. 1. A small termite cone slightly reduced. The fungus bodies appear 

 as white spots. That the cone is composed of a large number 

 of round structures can be seen from the picture. These struc- 

 tures are the balls of termite excreta. 



2. A termite cone producing a large number of small Xylaria-\\ke 



structures. 



3. A variety of Xylaria-like structures produced by termite cones. 



The scale represents 20 centimeters divided into centimeters. 



231 



