ANTS. 



133 



cement and strips of glass a half-inch wide. If three-roomed, 

 two cross-walls an inch wide are built in the same way, 

 leaving a passage at one end which is bridged with mica. 



An Ant Colony. Sunning the Eggs, etc. 



For ventilation, a strip of Turkish toweling is cemented 

 along all the walls and partitions. Three panes of glass, one 

 for each room, are used for roofing. Two of the panes are 

 covered to make them dark and the walls are blackened 



Mrs. A. M. Fielde's Ant-Nest without toweling or roof; pane of glass l'2x4y 2 ; wall of 

 glass, Vi inch strips ; 2 cross partitions, 1 inch strips ; M, mica over passages ; S, flakes of 

 wet sponge. 



outside to shut the light out there. Food is given, a little at 

 a time, in the light room. A flake of fine sponge, one-eighth 

 of an inch thick, is kept moist in each of the dark rooms. 

 When a room is to be cleaned the light is let in. Then the 



