f 4°6 ) 
eo the length of an Inch, and tha^ the Diameter of a 
Pidgeons Egg is three fourths of an Inch, then 450 
Diameters of a Mites Egg are equal to one Diameter of 
a Pidgeons 3 and fuppofing their Figures to be alike, 
we may affirm, that 91125000 Eggs of a Mite are not 
bigger than one Egg of a Pidgeon. 
Upon the 10th of November 1708. by the means of 
glutinous Matter, I ftuck twoMifces, which I judg’d to be 
Females, upon the point of a fmall Pin 3 and upon the 
i.ath of the fame Month, I found they had laid 3 Eggs 
between ’em : The next Day there were 4, and foon 
after 6. I did not keep thefe Eggs warm, but let them 
ftand upon my Desk, to fee how long they wou’d be, 
in that cold Weather, before they were hatch’d. 
Upon the 8th of December , I could perceive that one 
of thefe Mites ftir’d three of her Legs , but after that 
time I could perceive no more Life in her. 
Since the 10th of November. l view’d the faid 6 Eggs 
feveral times, and obferv’d, that at the thickeft end of 
them (for they feem’d to be exactly fhap’d like Hen 
Eggs; they feem’d darker and darker: And upon the 
-sad of December , I could perceive upon the thickeft 
end of one of the Eggs, which ftuck faft, a little 
Mite, that had work’d itfelf fo far out of the Shell, as 
to make a continual ftirring with 4 of its Legs 5 but 
not being able to faften them any where, I did believe 
that it would foon dye. 
Upon the 25th of the laft mention’d Month, I did 
further obferve another Mite got out of its Shell. From 
whence we may conclude, that as of Hens and other 
Creatures, their Chickens are not encreafed, nor nou- 
rifh’d in the Eggs, unlefs the Mother fits on them 3 and 
that all their Eggs are hatch’d about the fame time 3 
fo here on the contrary, the Eggs of Mites not being 
fat upon, but from time to time, and the Eggs laid on 
feveral Days, the young ones muft conlequently be 
batch’d at different times. 
From 
