and Obfer vat ions. 269 
then dragging up their Bodies to them. The 
End where their Excrements are difcharged 
has a little Opening, with two black Spots 
refembling a Half-moon. Twenty or thirty 
are ufually found in one Head, of the Size 
of very large Maggots. 
4. Like to the foregoing, efpecially to¬ 
wards the Tail, but fmaller, lefs vigorous, 
and not fo hairy, are certain Maggots found 
in the * Heads of Sheep. Their white Bo¬ 
dies are marked acrofs with black Lines (par¬ 
ticularly the larged: of them); and two black 
Spots at the Anus, which form a Half-moon, 
in the Worms of Deer, compofe in thefe a 
complete Circle. They abide mod: common¬ 
ly in a hollow Part of the Os Frontis, near 
the Infertion of the Horns ; but are forne- 
times found even in the Moftrils, and in the 
Cavities round the Roots of the Horns. 
Sometimes too they get higher up into the 
Head, and make the Sheep run mad. They 
' are lefs numerous than thofe in Deer, being 
feldom more than ten or fifteen. 
' - . , s 
5. Early in the Spring Seafon, we fhall 
frequently dnd flicking to Pales of Wood, 
efpecially very old ones, and fometimes to 
Walls of Brick or Stone, a Sort of little Worm 
or Maggoty inclofed in a Cafe about the Big- 
* Vid, Redi de Gener. Infeft, p. 3.05, 
T 2 iieft 
