480 



J. C. BRANNER GEOLOGIC WORK OP ANTS 



amination of their constniction, however, shows that they are made 

 partl}^ of clay or the earth about the nest and partly of woody fiber. 

 These two substances are variously mixed in structure, sometimes one 

 being more abundant, sometimes the other. An examination of the 







Cl Sm^i- 



FiGURii: 5. — Above-f/round Structure of White Ants 



Seven kilometers west of Queluz, between Piquiry and S. Gongales, State of Minas 

 Geraes. From a photograph by the author, August 4, 1907 



materials of the outside part of the large and old nests, however, shows 

 that this part of the nest at least contains fragments of quartz, sand 

 grains, and such like rock fragments that could not possibly have passed 



