118 E. PEllRONCITO ON THE ENDEMIC DISEASE OF THE 



obliged to work in conditions favourable to the development and 

 multiplication of the above parasites, (as I can better demonstrate 

 in my complete work,) has been sustained by a helminthiasis for 

 Anchilo stoma, or Anguillula, or for all three specimens simultane- 

 ously in the same individuals. It would seem to be an endemic of 

 a nearly parasitical nature. The mode in which especially the A7i- 

 guillula intestinalis is developed authorises me to take this nemato- 

 helminth from the genus assigned it by Bavay. It should be placed 

 in the genus Strongi/lus, and might opportunely be named " Strongy- 

 lus jyapillosus/^ as I hope to prove. 



Appendix by the President. 



The foregoing observations on the part of Professor Eduardo 

 Perroncito were originally communicated to the Science Academy 

 at Rome (May 2, 1880). So important are Perroncito's researches 

 in themselves that they are worthy of republication in their present 

 form in the Transactions of our Club ; but, apart from their in- 

 trinsic merits, it is of some moment that their relation to other 

 records of parasitism should be made clear. Endless confusion 

 exists on this subject. 



I may observe that, notwithstanding the admirable clearness of 

 Professor Perroncito's descriptions, there are some few passages I 

 have not quite understood. However, I have taken as few liberties 

 with his English manuscript as possible, altering only such words 

 as were absolutely necessary. It may be as well to add that the 

 symbol employed by Professor Perroncito (namely, the Greek fx,) 

 means the thousandth part of a millimetre. 



Through its Geneva correspondent, the I'iines newspaper re- 

 cently called the attention of the English public to the so-called 

 Mount St. Gothard outbreak of '* Tunnel Trichinosis." It was in 

 this way that an unwarrantable use and abuse of the term Trichi- 

 nosis originated in this country. Had the error stopped where it 

 commenced, no harm would have been done ; but, to make matters 

 worse, our leading medical journal fell into a similar mistake, and 

 described yet another form of parasitism — which had no more to do 

 with Trichinosis than with A nchylostomosis itself — as Trichinosis 1 

 In an article entitled " Trichinosis and Trichinosis," the Lancet in- 

 cluded a parasitic affection which was found to be associated with 

 an outbreak of typhoid fever on board H.M. training ship " Corn- 

 wall." Not a single Trichina was found in any case, not even in 



