Q8 NOTES TO THE 



and lizards of Gesner, Historia animal., de qiiadru- 

 jped. ovijmr. j}. 41 ; the iiorned worm of Salmiith, 

 observat. medic, cent. ii. obs. 7 ; and muMV others 

 like them too numerous to relate in this pi<ice. 



(4) Before the time of Lhmaeus, physicians 

 were only acquainted witli tlic liimbricus longus, 

 lumbricuslatuSj andascaris vermicularis. 



(5) In the classification of the human worms, 

 we should include those only which constantly in- 

 liabit the human system, the varieties of the spe- 

 cies, such as those of the taenia, of the lumbrif 

 co'ides, as well as the worms which, by some acci- 

 dent, have found their way into the human body, 

 such as the viviparous gordius^ or crino, the insect 

 known to naturalists under the name of scolopon- 

 dre, the fasciola intestiaalis fdoiivej, the gordiu^, 

 loedinensis fla veine dp medinej the ascarus pso- 

 ricus, (see the appendix of the principal human 

 worms,) and other similar worms cannot be said to 

 be peculiar to the human species, and therefore 

 cannot make a part of the order of real human 

 worms. 



(6) Vermiiun terrestrium et Jluviatilium Uis-^ 

 ioria, vol. u. jp. 2S, 



(7) Cast your eye over the collection of the 

 principal worms in the annexed plates, and ob- 

 serve their external structure which is truly admi- 

 rable in each species. 



(8) There have been many disputes among natu- 

 ralists respecting tlie existence of the brain of worms; 

 Inifc they have established nothing with certainty oe 



