XOTES 



TO THE THIRD LECTUR^. 



(1) As Block has affirmed that worms are not 

 always the cause of diseases in the animal machine, 

 Traite de la gen. des vers, p. 69, douzieme preuve, 

 he must have said it to prove, as a naturalist, that 

 worms are natural to every animal. 



But that a physician of great repute, like the 

 American Rush, should maintain that worms are 

 necessary to preserve the health of children, is what 

 every practitioner will oppose : see Weikard, 

 Maladies locales, classe premiere, etc. Natural- 

 ists have not omitted to notice the complaints, 

 sometimes even fatal, occasioned by worms in ani- 

 mals. Goeze, an exact narrater of every thing he 

 had occasion to observe, Versucheiner, J^aturg. 

 etc. p. 98, says he once took a temporary living frog 

 •which could not move, and seemed to be almost dead : 

 this frog, put in a basin of water, immediately sunk 

 to the bottom, and in a few minutes died. In its 

 viscera two Cucullani were found and several as- 

 carides vermiciilares which were swarming in the 



