11 



by the following experiments : I obtained three of these 

 animals and wrapped about the wreath of each, a piece 

 of fine linen, previously dipped in sweet oil, and secu- 

 red them in such a manner that it was impossible for 

 the worms to get them off; expecting by these means 

 to obstruct the pores, and kill the animals ; but was 

 disappointed in my expectation — They were kept in 

 this situation in the earth two days without injury. 



I am induced to believe, from the following facts, 

 that this wreath must be their genital organs. In exa- 

 mining the younger tribe, I find they are not furnish- 

 ed with this structure, at least it is not visible, and the 

 larger the animal, the greater proportion does it bear to 

 the whole body. By a minute examination of this 

 structure, of a full grown animal, in a strong light 

 may be observed a number of cicatrices, occasioned 

 probably by the passage of the ova. 



I have been able to discover by the naked eye, that 

 it is furnished internally, with blood vessels, an seso- 

 phagus, stomach, and intestines. 



The white bodies that are situated near the head, 

 which have been supposed by some to be the genital or- 

 gans, appear to answer in some measure the function 

 of a heart. All the large blood vessels pass through 

 them, by making an incision here, a considerable he- 

 morrhagy ensues, much greater than follows the sec- 

 tion of the blood vessels in any other part of the bodv ; 

 consequently it may be looked upon as the source of 



