322 ENTOZOA. 



and from my familiarity witli specimens of Ascaris mystax obtained 

 from cats, arrived at the conclusion thatBellingliam's Ascaris alata 

 was neither more nor less tlian A. mystax, it is a matter of great 

 satisfaction to myself that I am noiv enabled to hring forward a third 

 instance of the occurrence of Ascaris mystax in the htiman body, and 

 that, too, under the following clearly- defined circumstances : — 



About the middle of November, 1862, Dr. Edwin Lankester, 

 F.E.S., Coroner for Central Middlesex, received from Mr. Scatter- 

 good, M.R.C.S., of Leeds, a specimen of a nematode worm (one 

 out of eight examples), accompanied by a note explaining the 

 source from which it had been derived. On the evening of the 

 21st of November, Dr. Lankester called my attention to this para- 

 site, and, in a most disinterested manner, permitted me to examine 

 it at leisure, with the view of making any further use of it which 

 I might think advisable. On seeing the worm, I did not doubt, 

 for a moment, that we had stumbled upon a genuine Ascaris 

 mystax, and therefore, at once, putting myself in communication 

 with Mr. Scattergood, the latter gentleman, on the 22nd of 

 November, obligingly favoured me with the following important 

 particulars : — 



" I have great pleasure in sending you, herewith, three more of 

 the entozoon, and, should any others be found, will gladly send you 

 the recent specimens. The eight entozoa, of which you now have 

 four, were passed early in this month, after a few days of diarrhoea 

 and fretfulness, by a child thirteen months old, the son of a 

 respectable merchant in this town. I have made careful inquiries 

 respecting the child's food, etc., and have every reason to believe 

 that the following account is correct. The child, though suckled 

 to the age of seven months, had also been fed with milk and water 

 sweetened with loaf sugar. At the age of eleven months, flour, 

 oatmeal, or 'rusk' was added to this, and subsequently a little 

 bread, farinaceous puddings, potato with gravy, soup, and broth. 

 The water used was that supplied from the Leeds waterworks. It 

 was not filtered, but was always boiled before adding it to the 



