122 



THE INTERNAL PAEASITES OP 



muscle flesh-worms are commonly found enclosed, are not 

 essential to the perfection of the larval parasite ; but they 

 commence to form immediately the young worms have 

 attained the highest degree of organisation characteristic 

 of their larval growth. 



Having so often written on the subject of Trichina, I 

 have purposely limited my remarks in the present work ; 

 but in case the reader should desire further particulars, I 



Fig. 28. Encysted Fleshworms or Muscle-Trichina. 



take the opportunity of referring to the 12th chapter of 

 my larger illustrated treatise on the entozoa. In the 

 supplement to that work I have also given an exhaustive 

 account of the history of the discovery of this remarkable 

 parasite. I have likewise added many additional 

 particulars of interest in my Lectures on Practical 

 Helminthology (p. 122), in the Cantor Lectures 



