QA: COMPOUND ANT-HILLS. 
ance of mixed ant-hills, they are the sole 
work of the Ash-coloured Ants, although 
they are of greater extent than simple 
ant-hills, inhabited by that species, aris- 
ing from their double population, and the 
prodigious number of auxiliary ants they 
contain. ‘Their form, the architecture 
displayed in their construction, the sub- 
stance of which they are composed, the 
interior arrangement, is altogether alike. 
I have frequently seen the Negro Ants 
of compound ant-hills take advantage of 
the rain to construct new stories upon 
their original domicile; they also often 
increase the extent of it by forming 
halls and chambers on the exterior mar- 
gin; so that in three or four days they 
form, as it were, a new dwelling around 
the first enclosure. 
The Legionaries never venture abroad, 
dike the Ash-coloured Ants, during the 
rain, nor do they even, during that pe- 
riod, advance so far as the outer gallery ; 
nor are any seen, as one would suppose, 
presiding over the masons, in their work ; 
