CONSTITUTION AND DEVELOPMENT OF TERMITES. 311 
and the jar was not completely closed, because the paper did 
not accurately fit its mouth. 
On June Ist, about 9 a.m., I found a number of winged forms 
with a few soldiers and workers on the part of the sheet of 
glass which lay between the two jars; the poor little animals 
had taken advantage of the spaces left by the ill-fitting paper 
to emerge, and were then vainly trying to escape from the 
bell-jar. Nothing was disturbed, and twenty-four hours later 
no change had taken place, except that the winged forms were 
more numerous, and some were moribund. 
I then decided to liberate them, and removing the bell-jar I 
put them by means of a quill pen into a receptacle containing 
suitable materials for a nest—but without success, for they all 
died in less than forty-eight hours. No more winged examples 
could be detected through the walls of the glass jar; it 
was replaced unopened on the pane of glass, and once more 
covered with the bell-jar. Twenty-four hours later a large 
number of larve and several soldiers were again found on the 
pane. They were then returned to the nest by means of a 
quill, and did not escape again. 
The observation here recorded was made some years ago, 
and though imperfect is not wanting in significance. 
Another swarm was observed on a May morning of the 
present year (1892). There happened to be a small level 
place in front of the holes from which the perfect insects 
issued, and on this they ran to and fro before taking wing. 
They were accompanied by soldiers and workers which had 
emerged into daylight, evidently to protect the swarm. 
Several writers have recorded that black Termites, when 
ready to fly, perform certain movements which can be best 
followed by putting the insects on a sheet of paper; these are 
the so-called love passages, often described, and especially by 
Fritz Miller. 
They are not exhibited by Calotermes, but may easily be 
observed in Termes lucifugus. 
The majority of examples dispose themselves after the loss 
of their wings in pairs, one behind the other. More exactly, 
