ARCHITECTURE OF ANTS. ly 
but, however fantastical their habitations 
may appear, we always observe they have 
been formed by concentrical stories, On 
examining each story separately, we ob- 
serve a number of cavities or halls, lodges 
of narrower dimensions, and long gal- 
leries, which serve for general communi- 
cation. The arched ceilings covering 
the most spacious places are supported, 
either by little columns, slender walls, or 
by regular buttresses. We also notice 
chambers that have but one entrance, 
communicating with the lower story, and 
large open spaces, serving as a kind of 
carrefour, or cross-road, in which all the 
streets terminate. Such isthe manner in 
which the habitations of these ants are 
constructed. Upon opening them, we 
commonly find the apartments, as well 
as the large open spaces, filled with adult 
ants, and always observe their pup col- 
lected in the apartments, more or less 
near the surface. This, however, seems 
regulated by the hour of the day, and 
the temperature ; for in this respect these 
