47^ 



Microscopical Essays. 

 8. Monas Lamellula. 



Monas, hyalina comprefla. Flat tranfparent monas. 



This is moftly found in fait water. It is of a whitifh colour, 

 more than twice as long as it is broad, tranfparent, with a dark 

 margin, the motion vacillatory ; it often appears as if double,. 



9. Monas Pulvifculu. 0 * 



Monas hyalina, margini virente. Tranfparent mona, with a 

 green margin. 



Little fpherical pellucid grains, of different fizes, the circum- 

 ference green, a green bent line pafles through the middle of 

 fome, probably indicating that they are near feparating, or di- 

 viding, into two diftincl; animalculurn ; fometimes three or four, 

 at others fix and feven, or even more, are collected together. 

 They rove about with a wavering motion, and are moftly found 

 in the month of March in marftiy grounds. 



10. Monas Uva. 



Monas hyalina gregaria. Tranfparent gregarious monas. 



It is not eafy to decide on the nature of thefe little affemblages 

 of corpufcles, which fometimes confift of five, at other times of 

 four, and frequently of many more ; the corpufcles are of different 

 fizes, according to the number collecled in one group. When 



col le£ledi 



