contraction and expansion of the mouth end; and it 
also swayed from side to side, and as this moved the 
prickles there is no wonder at the irritation it keeps up in 
the sac. On the under surface of the hide, although the 
surface may not often be broken, yet the sub-cutaneous tissues 
are left as a film of no strength, which injures the surface of 
the leather. The warble with the maggot in it, although most 
prevalent in April and May, is found occasionally much later 
in the year. The maggot begins to escape from the warbles 
in April, fast leave the cattle in May, the hides are almost free 
from them in July, and the date of the last observation of 
the maggot in warble was August 2nd. In getting out of the 
warble, it compresses itself, and shoves itself forward ring by 
ring, the prickles preventing it from slipping back, until it is 
quite free, when it tumbles to the ground. After the maggot 
escapes, a quantity of matter can be squeezed out of the 
warble, and in some cases it is very thick and muco-purulent. 
Mr. H. Thompson examined the backs of several carcases 
when the skin had been removed, but could not find any 
marks to show where warbles had been, but some of the 
fleshers told him that at times they (the maggots) penetrate 
the flesh, and spoil the sirloin. Mr. J. Dalton states that in 
two or three weeks after the escape of the maggot the hole 
quite closes up, and the only trace remaining is the cicatrix 
where the wound had been. In some pieces of leather you 
may notice both holes and marks, the latter are the healed 
wounds of the previous year—the scar always remains. Some¬ 
times the young maggot dies in the hide, whether from 
unseasonable development or some other cause is not known. 
Miss Ormerod found the young maggot different from the 
adult both in form and texture. The smallest she examined 
was about \ inch long by about a third of that in width, 
not oval, but straightish, or somewhat worm-like in shape ; 
when older they become rather enlarged at the mouth end, so 
as to be of a long pear shape, and (excepting dark cross 
bands of prickles extending about one-third round them) 
were white, and partially transparent. While these small 
maggots were apparently alive, they were hard, and exter¬ 
nally, over almost all their surface, of glassy smoothness. On 
placing the very young maggots in water, they swell so much 
