( ) 
■ Fig- 5- F G H I (hows the hinder part of the laft 
mentioned cafe, where by G H are defcribed the well 
made (harp Points, which are fo ufef ul to that Crea- 
ture, and to faften it in the Web, whilft it is a 
Worm. 
■ I (ball conclude here, and in the mean time remain, 
Tour mcjl humble Ser^j.zntj 
J Anthony Van Leeuwenhoeck 
III. A Letter from Mr Charles King to Mr Sam. 
Doudy, F. R. 5. concerning Crabs Eyes. 
Little Wirley, Decemb. 14. 
SIR, 
T Cannot give J you any fatisfaftory account of 
•* the Stones^ iipi 'the Heads of Craw-fifh., fpf ^ i; 
never made "any ' obfervations but cafually., ' and' 
without any defign of a particular account of them,: 
having not fo much as made any note of the months 
that they firft appear, and what time they grow .to^ 
perfeciion. I only remember in general, that tney are^ 
always on the outfide of the Stomach, v/hi!e the old 
Coat flicks on the back of the Fi(h, and pafs into the 
Stomach as foon as they caft their Coats, having never 
feen them on the out(ide when they have changed, nor 
within before. And I alfo remember the Males change 
their Coats a coafiderable time before the Females, for 
they always keep theirs till they haVe parted with their 
young 
