240 ANIMAL PAEASITES. 



4. Angelica, the freshly collected stems of which are eaten 

 raw, without any preparation, or at the utmost washed a little 

 before use, whilst the roots are not used in many places, and left 

 for the foxes, which, in consequence of the want of sweet grapes, 

 cool their desire for dainties upon the sweet roots of the angelica. 



At present we cannot discover any other causes of the trans- 

 ference without appearing to go too far. The Icelander is not 

 partial to green vegetables, and even leaves the water-cress, so 

 much esteemed in other places, untouched. 



By the method of distributing the dung upon the pastures, 

 the eggs of Tcenice may very easily get to the above-mentioned 

 raw articles of diet, and the dogs, which run about and deposit 

 their dung upon the rocks, may also be the cause of the trans- 

 portation of the eggs of Teenies by the agency of rain to straw- 

 berries and bilberries. 



The principal prophylaxis is the destruction of the Echino- 

 coccws-vesicles wherever they come to light, and the prophylactic 

 treatment of those patients from whom Echinococcus- vesicles 

 pass off through the intestines, must be by means of our most 

 efficacious remedies for Ta>nice administered in small doses and 

 through a long period, in order to kill or expel the Tcenice. 

 With regard to the destruction of immigrating embryos, see the 

 experiments in the Appendix at the end of the book. 



SUPPLEMENT TO THE CESTOIDEA. 



After the first half of the section Cestoidea was already 

 printed, the following notes reached me ; they appear to me to 

 be sufficiently interesting to find a place here. Dr. Ficinus, of 

 Stolberg, supported by abundant observations, regards habitual 

 cephalsea in the crown of the head, with simultaneous alopecia on 

 the crown, as dependent upon tape-worm. He found this 

 symptom almost always accompanied with tape-worm, although 

 only in women. This would be a confirmation of Sibert's suppo- 

 sition that in disorders of the small intestine (the seat of the 

 T&nid}) the cephalsea extends to the vertex. (' Centralzeitung/ 

 xxiv, No. 39.) This symptom has not occurred to me. 



Dr. Pockels, of Holzminden, on the Weser, has informed me 

 by letter that in his native place tape-worms occurred in extra- 

 ordinary abundance in the human subject, and that an acquaint- 



