Microscopical Essays, 



motion, or a little inflation of the body, isfufficientfor this purpofe ; 

 thefe motions reiterated a few times, enlarge the hole, and afford 

 the moth room to efcape from it's confinement. The opening 

 through which they pafs is always at the fame part of the fkin, a 

 little above the trunk, between the wings and a fmall piece which 

 covers the head ; the different fiffures are generally made in the 

 fame direction. If the outer cafe is opened, it is eafy to difcover 

 the efforts the infect makes to emancipate itfelf from it's fhell ; 

 when the operation begins, there feems to be a violent agitation 

 in the humours contained in the little animal ; the fluids feem to 

 be driven with rapidity through all the veffels, and it is feen to 

 agitate it's legs, Sec. as it were ftruggling to get free; thefe 

 efforts, as we have already faid, foon break it's brittle fkin. 



The loofening the exterior bands of the pupa is riot the only 

 difficulty many moths have to encounter with ; it has often alfo 

 to pierce the cone, or cafe, in which it has been inclofed, and 

 that at a time when it's members are very feeble, when it is no 

 longer furnifhed with ftrong jaws to pierce and cut it's way 

 through ; but, by the regular laws of Divine order, means are 

 furnifhed to every creature of attaining the end for which it was. 

 produced : thus, in the prefent cafe, fome of thefe infects are 

 provided with a liquor with which they foften and weaken the 

 end of the cone ; fome leave one end feeble, and. clofe it only 

 with a few threads, fo that a flight effort of the head enables the 

 math to burfl the prifon doors, and ixn merge into day. 



When the moth firft fees the day, it is humid and moift ; but 

 this humidity foon evaporates, the interior parts dry and harden, 

 as well as the exterior ; the wings, which are crumpled, or thick 



and 



