Part II. in /^^ C r e a t i o n. 373 



Conformable to this Particular is the Reafon 

 my ingenious and inquifitive Friend Mr. Derbmn^ 

 before remember'd, hath given of the Produdlion 

 of fuch innumerable Multitudes of fome aquatick 

 Infed:s. 



I have often thought (faith he) that there v^as 

 fome more than ordinary Ufe in the Creation for 

 fuch Infeds as are vaftly numerous, fuch as the 

 Pulices aquaticiy which are in fuch Swarms as to 

 difcolour the Waters,and many others ; and there- 

 fore I have bent my Enquiries to find out the 

 Ufes of fuch Creatures, wherein I have fo far fuc- 

 ceeded, as to difcover, that thofe vaftly fmall Ajti- 

 malcula^ not to be feen without a Microfcope, 

 with which the Waters are replete, fcrve for Food 

 to fome others of the fmall Infedts of the Water, 

 particularly to the Nympha Culicaria [Hirjuta it 

 may be call'd] figur'd in S'wammerdam 5 for view- 

 ing that Nympha one Day, to obferve the motion 

 of its Mouth, and for what purpofe it is in fuch 

 continual motion, whether as Fifh to get Air, or 

 to fuck in Food, or both, I could plainly perceive 

 the Creature to fuck in many of the moft minute 

 Animalculay that were fwimming brifkly about in 

 the Water 5 neither yet do thefe Animalcules ferve 

 only for Food to fuch Nymphce, but alfo to ano- 

 ther, to me anonymous Infed of the Waters, of 

 a dark Colour, cleft as it were in funder, and fcarce 

 fo big as the fmalleft Pin's Head ; thefe Inieds 

 hunt thefe AnunalcideSy and other fmall Creatures 

 that occur in the Water, and devour them ; and 

 I am apt to think, altho' I have not yet feen it, 



B b 3 that 



