cys? 



PREFACE. 



IN presenting this Essay to the Society, I do not 

 profess to bring forward any new ideas upon helmin- 

 thic disease : it is nothing but a resume of the latest 

 ideas upon this subject, obtained from those works 

 considered as authority upon such matters. 



Among the treatises consulted are those of Kiichen- 

 meister, Von Siebold, Moquin-Tandon, Cobbold, Da- 

 vaigne, &c., besides scattered communications from 

 journals, which were deemed of interest. 



Feeling the subject to be one of practical impor- 

 tance, as well as one of much interest, the writer feels, 

 that, in presenting it to the notice of the Society, he 

 has not worked for nothing. 



The accompanying plates were copied from vari- 

 ous works by a friend, Mr! H. P. Quincy, to whom I 

 here desire to make my sincere acknowledgments. 



JANUARY, 1867. 



M359379 



