IN A “GLASS APPARATUS. 313 
the evening more passed. The second day 
they commenced carrying each other 
into the apparatus. Their number aug- 
mented hourly. At length the canal 
scarcely sufficed for the crowd of insects - 
going and returning; it was obstructed 
by the recruits, and these were, for the 
most part, engaged in transporting the 
Legionary Ants from the bag to the ruche. 
Having this glazed conduit, I was not 
obliged to open the shutters to see what 
was passing. The advantage of this 
arrangement was, that of not alarming 
the ants, whilst it assured me of their 
forming an establishment in the artificial 
ant-hill, preparing lodgings there, and 
removing the useless materials, such as 
flints or pebbles, and pieces of earth too 
dry to be put in work. I found from 
this, that it was necessary to moisten the 
earth in the interior, and, therefore, 
poured water through the holes in the 
upper part of the apparatus, which 
completely answered (as will be presently 
seen) all my wishes. 
P 
