HELMINTHOLOGY HELMINTHES NEMATOPES. 461 



Ardea cinerea and Cobitis barbatula. He also mentions an 

 Ascarts alnta occurring in the intestine of man. The female 

 individuals are 3 r ', inches long, the anterior extremity 

 appears curved,, the posterior, on the contrary, straight. A 

 transparent membrane, U line in length, descends on each 

 side of the neck. 



Various instances have been noticed of Round-worms (Asc. 

 lumbric.) which have quitted their abode in an unusual 

 mode. From an abscess in the middle of the transverse 

 diameter of the abdomen, and eight days after it was opened, 

 Dr. Miiller, at Schmiegel, observed a Round-worm make its 

 exit. (Oesterreich. mediz. Wochenschrift, 1843, p. 661 ; 

 Aus den Beitragen zum Sanitat Berichte in dem Posener 

 Regierungs-Bezirke. 1843.) In a communication from 

 Vandenbergh (Annales de la Societe de Medecine d'Anvers, 

 1844, Jan. p. 46) it is stated that a Round-worm, a span in 

 length, escaped together with well-formed pus from a swelling 

 in the right groin, without any trace of fseces. In a case 

 given by Kingdon (Froriep's n. Notiz. 548, p. 318), in which 

 there existed an urethral fistula, Round-worms came away, 

 with many troublesome symptoms, from the urethra of a 

 child seven years old. Botto (Oesterr. mediz. Wochen- 

 schrift, 1845, p. 91 ; from the Gazetta Medica di Milano, 

 1843, Nr. 47) performed laryugotomy, without finding any- 

 thing, in a boy affected with fits of choking, produced, as 

 was supposed, by his having swallowed a small stone ; after 

 some days bronchitis was set up, the child complained again 

 of having swallowed a small stone, and indicated its situation 



D 



precisely. He died at last under an aggravation of the 

 symptoms. On dissection no foreign body was found in 

 any part of the respiratory passages, but a great number of 

 Round-worms in the stomach and intestines, which had pro- 

 bably induced the convulsive fits, as a reflex phenomenon. 

 In another case, of a boy, twelve years of age, affected with 

 tonic spasms of the superior and inferior extremities, and 

 who after their cessation succumbed under an uncontrollable 

 diarrhoea, Dr. Weisse (Ib. 1843, p. 41 from the Vermischten 



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