FIRST LECTURE. TS 



111 truth, the generative organs are but very lit- 

 tle known. The others have not been clearly ex- 

 hibited, and are in fact but very imperfectly under- 

 stood. 



(31) The time requisite for the fecundation of 

 the e2;gs has never yet been determined. JBloch, 

 Traite de la generation des vers etc. p. i^, assures 

 us that taeniae have eggs before they are four mouths 

 old. 



(35) See pi. IT. fig. iv, v, vi, vii. Bonnet views 

 them as particles of fat. Andry was the first who 

 recognised them as genuine eggs. 



(36) § xvin. 



(^7) The work cited, p. 17. 



(38) The work citGi\^ idem. 



(39) JDe Ascarlde et Liimhrico lato ; Lugdimi- 

 Batavorum, 17^9, S°. 



(40) Osservazioni de' mcdicl provlnciali di 

 Svezia, p. 28S. 



(41) They bear also cold with iudilTcrence. 

 Bosenstein, Maladies des enfans, etc. p. 301, after 

 having left a taenia in a plate for twenty four hours, 

 put it into a vessel, pouring hot water upon it. The 

 taenia began to move and to wind about ; he then 

 bathed it with fresh water; the worm seemed to die. 

 In this manner he saw it die and revive alternately. 



(4*i) Besides the sense of taste, of touch, and of 

 sight, which have been attributed to these worms by 

 various writers, Konig, Acta Helvetica, T. 1, is led 

 to believe that taeniae possess also the sense of 

 smell. 



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