Worms, 



Curious observations upon Worms Reproductive 

 power of the JVo-i's Sabularia Terebella Lum- 

 bricus GPlanaria Helminthes, or Entozoa The 

 common Earth-worm, Lumbricus terrestris The 

 Leech, Hirudo mediainalis The Horse-leech, if. 

 saneruisug-a, Hirudiculture, or Leech breeding- Its 

 cruelties Extent to which it is carried on in France 

 Barometers of Leeches and Frog's Worms for 

 the Aquarium. 



