NEMATODA 149 



"Bibliography" of that work under the following heads: Andral 

 (pulmonary veins), Angeli, Auglagnier (bladder), Baillarger 

 (brain), Boinet (liver), Chaubasse (abdominal), Gruveilhier (liver 

 and spleen), Dupuy (hydatids in animals), Demarquay (liver), 

 Dupuytren (muscles and viscera, &c.), Fouquier (lungs), Gayet 

 (liver), Goyrand (liver), Guerard, Guillot, Hedinger (brain), 

 Heintz (liver), Held (thigh), Heller (lip), Klencke (blood, &c.), 

 KuTin > Lafforgue (liver), Legroux, Livois, LuschJca (liver), Martinet 

 (brain, liver), Maug (hand), Meissner, Miched (brain), Moissenet 

 (liver), Montault (brain), Morrisseau, Nicolai (liver), Oerstelen 

 (kidney), Pohl (abdominal), Quinquirez (bladder), Recamier 

 (abdominal), Richard (liver), Roget (lungs), Roux (pelvic), 

 Riittel (brain), Schleissner, Sichel, Sommering (eye), Skoda, 

 Tomowitz (bladder), Zeder (brain). 



Additional references to the echinococcus disease as it occurs 

 in animals will be found at the close of the section devoted to 

 the parasites of Ruminants (Bibliography No. 49), and I shall 

 recur to the subject of mortality from " worms " further on. 



SECTION III. NEMATODA (Round Worms). 



Trichina spiralis, Owen. The progressive triumphs of 

 biological science are well epitomised in the history of the 

 discovery, and in the record of the gradual manner in which we 

 have obtained our present complete knowledge of the structure 

 and development of this small entozoon. 



Although the facts connected with the original discovery are 

 clear and indisputable, much error still pervades foreign litera- 

 ture on this head. Without a doubt Mr Hilton was the first to 

 suggest the parasitic nature of the capsules first spoken of as 

 " gritty particles." With Sir James Paget, however, rests the 

 true discovery and determination of the nematoid character of 

 the worm itself. With Professor Owen remains the honor of 

 having first scientifically verified, described, and named the 

 entozoon. Some have sought, without good reason, to alter 

 Owen's nomenclature ; yet not only the generic title, but nearly 

 all else that he wrote concerning the parasite, must be allowed 

 to stand. 



In relation to the capsules, it is true that prior claims of 

 discovery have been put forward ; but whilst Peacock's prepara- 

 tion of the " little bodies " testifies to the fact of his having 



