y6 Lice found on Polypes, 



much better in it, but you may view them 

 with more Pleafure, and have not occafion 

 to fhift it quite fo often. 



It is very common foon after their Water 

 is changed, to fee them difgorge into it 

 whatever was in their Stomachs : but they 

 do this more immediately, if it be Pump, 

 or Spring- Water, or of a Kind they do not 

 like. 



A great Inconvenience arifes from Multi* 

 tudes of minute Water Infed:s, which, like 

 Lice, crawl about the Body, Head, and 

 Arms of the Polype^ and feem to torment 

 it exceedingly. Renewing the Water fre- 

 quently is fome Relief for this Evil, but the 

 moft eflFeftual Way is to rub them off in 

 clean Water with a foft Hair-Pencil, then 

 take them out, and put them into other Wa- 

 ter, and repeat this Operation two or three 

 times. They may thus be made very eafy 

 for a while ; but with all my Care, I could 

 never preferve them long free from thefe 

 vexatious Vermin. 



Thefe Lice are fo numerous, and of fo 

 large a Size in refpedl to the Polype, that 

 (as any Body will be fenfible on viewing 

 them through a Microfcope) they muft give 

 it great Uneafinefs : for they feem as big in 

 comparifon as Beetles would be to Us, and 

 by crawling all over its Body and along its 

 Arms, make it writhe and twift about, and 



fhift 



