Microscopical 



Essays. 



5°7 



winch are not eafy to be defer ibed ; it will be enough to have 

 .given the reader their general and diftinguifhing chara&eriflics, 



64. Vibrio Verminus. 



Vibrio linearis compreflus, antice quam poflice angufiicr. 

 Linear compreffed vibrio, the fore-part narrower than the hind- 

 part. 



A round tranfparent anirnalculum, or rather along cryflalline 

 membrane, the hind-part broader than the fore-part, the apex 

 fubtruncated, the bafe obtufe, no perceptible inteftines, in the 

 middle are two fpherical veficules, and a third towards the lower 

 edge. It moves quickly, with an undulatory motion, backwards 

 and forwards; they fee m to be joined in a very fmgular manner, 

 and are found in great plenty in fait water that had been kept 

 fome days, and was foetid. 



65. Vibrio Malleus. 



Vibrio linearis bafi globuli, apice linea tranfverfa. A linear 

 vibrio, with a globule at the bafe, and tranfverfe line at the apex. 



This is a white pellucid animalculum, refembling the letter T\ 

 with a globule affixed to the bafe. 



It is in motion and at reft every moment alternately ; when in 

 motion it refembles the letter V, when at reft the letter T. They 

 are found plentifully in fpring water. 



o q 2 66. Vibri# 



