( 4°7 ) 
From thefe Experiments we may obferve, what an 
Influence warmth has on the Eggs of Mites j for from 
thofe that I carried in my Pocket, young ones were 
produc’d upon the nth or 12th Day$ but thofe which 
I kept in a Box upon my Desk, were not hatch’d in 
lefs than 7 Weeks time. 
Thus we fee how regular the ProdudHon. of a Mite 
is, (which was formerly look’d upon to be the fmalleft 
of Creatures,) and how admirable the Structure is 
of fuch a wonderful Ammalculmi : Wherefore thofe 
who have hitherto been big of that Vulgar Error, that 
a great many fmall AnimdcuU are produc’d of them- 
felves, or out of Corruption, I doubt not, but now they 
will be convinc’d of their miftakes. 
I have moreover difcover’d both in Cheefeand other- 
ways, a great many empty Husks, or Skins of Mites, 
which I moltly imagin’d to be the Skins of dead Mites ^ 
but when I now perceiv’d that the dead Mites were 
not tranfparent, I began to confider whether thefe 
Mites might not fhed their Skins, as well as feveral 
ther Creatures r But that Matter demands a further en- 
quiry. 
After that we had had for fome Days more than or- 
dinary cold and frofty Weather, I got fome Mkes that 
were taken from a Bladder broke in pieces, and view’d 
them with a Glafs 5 and faw that fome of them were 
dead, and others ftiil alive, but very flow in moving. 
In the latter end of the Winter, I took a Glafs Tube 
of about the length of a Span, and thicknefs of a com* 
mon Writing Pen 5 and I put therein three or four 
Mites, which l judg’d to be Females ^ and together with 
them a long flice of a dry’d Ox’s Bladder, which I had 
laid in Rain Water for a very fmall fpace of Time, be- 
caufe it was very hard and dry i, but I prefs’d it again 
with a clean Cloatb, that the Water in it might be no 
hindrance to the Mites, and then I ftopt both ends of 
the 
