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Wings : At its firft Appearance there is only what 
one may call the Rudiments of Wings; but it is a molt 
entertaining Sight to obferve how they {hoot out, and 
expand themfelves : Thus, in lefs than an Hour, they 
have attained their complete Dimcnfions. During 
all this Operation the Creatures are immoveable, and 
fo continue, until their Wings are dry ; and then they 
fly fwiftly away, roving about the Sides of Ponds 
and Rivers, feeking their Food, being Infers of 
Prey, arc very voracious, and, like the Hawks among 
Birds, are very fwift of Flight, and nimbly fccurc 
their Prey, which is moftly Flies, and fmall green 
Grafhoppers: They delight in Sunfhine ; in cloudy 
Weather they are rarely to be feen ; but feek Pro- 
tection under the Leaves and Boughs of Trees. 
Towards the End of May the Female is ready to 
depofit her Eggs : She then feeks the warm quiet 
Sides of Ponds and Water- courfes, continuing in 
a hovering Pofture, dodging up and down in the 
Water : In this Action the Male feizes her, and 
with the End of his Tail catcheth faft hold by the 
Back of her Head, and flieth away with her. It is 
uncertain how long they continue in this Pofition 
before the Female bends the End of her Body, fo as 
to penetrate the Part between the Belly and Bread 
of the Male. In this Angular and furprifing 
manner fhe is impregnated ; then fhe repairs again 
to thofe flill fhallow Waters, whofe Bottoms are 
covered with Mofs, Sticks, and,. Weeds, which may 
be a Security to the little Grubs. Here fhe in 
a hovering Pofture depofits her Eggs in the Water, 
which immediately fink, and find a proper Nidus 
in 
