96 192 



xxii LIST OF ILLUSTRATIONS. 



FUaria sanguinis hominis (after Lewis), .... 



Elea, Larva of the, . . • . . • • 



Flesh of pig with bladder-worms (natural size), 



Flesh of pig with TricMnai ( x 45), . . . . ■ 



Gregarines, encapsuled ; {A) after conjugation; {B) after formation of 



pseudonavicellse, ....... 



(A) Monocystis agUis ; (B) Gregarima cuneata ; (C) Stylorhynchus 



oligacanthus, ...... 95 192 



Hexamita intestinalis, in the young and adult states (after Stein), . 120 240 



Hirudo mecUcinalis, Cephalic end of, -with the three mandibles at the 



base of the oral cup, ...... 9 17 



Infusorians with undulating longitudinal membrane from the intestine 



of the hen (after Bberth), ...... 



Lacerta vivipara, Unarmed cystic worm from the body-cavity o£ ( x 30), 

 Liver of a rabbit with Coccidmm-nodules, .... 



Measly pork, ........ 



Miescher's tubes, Extremity of one of, with its contents, 

 Monostomum capiteUatum — ...... 



,, ,, Ciliated embryo of, . 



Monostomum mutdbile, Infusorian-like embryos of, with the " necessary 

 parasite," ... .... 



Musca vomitoria, Larvae of, ..... . 



(Natural size and enlarged), ..... 



Muscle- Trie Ai?ME, seven weeks old, in the distended sarcolemma-sheaths, 



Nasua socialis, Kidney of, with Eustrongylus in the distended pelvis, . 



Oxyuris amhigua (young), 



Oxyuris vermioularis, Eggs of, . 



Paramcecium coU (after Malmsten), 



Pediculus {Phthirius) pubis, 



Pentastomida, Lung of rabbit infected with, 



Pentastomum, Lung of a rabbit infected with, 



Pentastomum constrictwin (after Aitken), 



Pentastomum denticulatum. 



From the liver of man. 

 Piece of a rabbit's liver with bladder-worm passages ( x 10), 

 Piestocystis variabilis, Longitudinal section of an unarmed cystic worm 



from the lung of a crow ( x 30), ..... 

 Pseudonavicellae, with germinal rods in their interior, . 

 Psorosperm-balls and Gregarines on human hair, Lindemann's, 

 Psorosperm-nodule, The epithelium of a, filled with parasites, 

 Psorosperm-saocule from the urinary bladder of the pike (after Lieberkuhn), 

 Psorospermise from the connective tissue of the human kidney (after 



Lindemann), ....... 115 226 



Psorosperms, {A), from the urinary bladder of Oadus lota; (B), from 



the gills of the bream, ...... 



Pulex penetrans, male and female, ..... 



Eainey's bodies, one of, within an isolated muscular fibre, enlarged 100 



diameters, ........ 



Rainey's tubes enlarged about 40 diameters, .... 



Rediae, Bojanus' "kingsyellow worms," from the poad-snail. 

 With brood of Distomes in the interior, 

 (A ) with germs ; {B) with Cercarias in the interior ; (C) free Ceroariaj, 



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