64 EGGS, &C. OF ANTS, 
by making a true wall of earth behind 
the contrevent. After having for some 
time attended to the manners and habits 
of these insects, I found that we might 
accustom them by degrees to suffer the 
entrance of the light in their abode; but 
it was necessary, notwithstanding, to use 
much - caution. What succeeded with 
me the best, was that of forming an 
oblong opening in the middle of a table, 
and affixing underneath, a double frame, 
glazed: on its two longest sides, and 
opened only at the upper part, which 
communicated with this aperture. ‘These 
frames (fig. 1. Pl. I.) being furnished with 
shutters, permitted me, either to observe 
the ants, or to favour them in their taste 
for obscurity. This done, I scattered all 
the materials of a nestof Fallow Ants upon 
the table, and left them at liberty to ar- 
range them at the bottom of the glazed 
box, which they did in such a manner, 
that it was easy to observe all their gal- 
leries, and the apartments to which they 
led. Jat length covered over the whole 
