BUKEAU.OP ANIMAL. INDUSTRY. 565 



DESCRn»tiON OF PLATES. 



Plate III. — Left lung of a calf affected -witli verminous broncliitis. Lateral aspect. 

 The greater part of the surface has a normal appearance excepting the 

 islands representing hepatized tissue. The pleura over the posterior half 

 is more or less opaq^ue. Clouded (x f ). 



Plate IV, Fig. 1. — Trans-section of the left lung represented on preceding plate. A 

 considerable portion of the lung tissue is hepatized. Toward the left a 

 bronchus is seen in section, filled with strongyli (x^). 



Fig. 2. — A large bronchus from tho same lung, slit open and showing the openings of 

 three smaller bronchi. Bundles of worms projecting therefrom. 



Plate V, Fig. 1. — Srongylus micrurus, about natural size. A, male; £, female. 



Fig. 2. — Caudal extremity of the male, Showing the bursa b, supported by twelve 

 rays, from two different aspects, a the two short spicula (x 50). 



Fig. 3. — Anterior extremity of the male, showing the mouth and oesophagus a lead- 

 ing into the intestine i. The two unicellular glands of tho neck are 

 shown with their enlargement o containing a minute nucleus (x 40.) 



Fig. 4. — A, anterior extremity of a female ; a, &, c, as in Figure 3 ; at d the oviduct is 

 bent upon itself and continued into the uterus which contains some ova. 

 B, posterior extremity showing at c the flexure of the oviduct and en- 

 trance into uterus filled with ova; /, tho enlarged posterior portion of 

 the intestine (x 50). 



Fio. 5. — A, i>ortion of the body of a female near the middle of the body with ova con- 

 taining fully developed embryos (x 40). £, the ova with the embryos 

 occupying different positions (x 120). 



Fig. 6.— An adult female filled with ova (x 4). 



Plate VI,* Fig. 1. — Strongylua paradoxus, caudal extremity of the male showing a, 

 tho bursa ; h h, the spicula, hooked at the free extremity. 



Fig. 2. — Caudal extremity of female with pear-shaped vesicle a. 



Fig. 3. — Pscudalius ovis pulmonalis, female; a, i, c, constrictions; d, caudal extremity ; 

 e, mouth (x 50). 



Fig. 4.— Caudal extremity of tho male (x 800); a, spicula forked at &. 



Fig. Ti. — Stronfjt/lus filaria, female; a, mouth; I, funnel-shaped insertion of ojsophagus 

 into intestine ; c c, intestine ; d, caudal extremity; e, vulva; ff, uterus. 



Fig. G. — Caudal extremity of male ; a, bursa; Z», spicula; c, flap-like attachment, and 

 d, conical, blunt extremity of the same ; e e, rays of the bursa. 



liG. 7. — Syringe used for tracheal injections; a, syringe with glass barrel and gradu- 

 ated piston-rod; h, hollow needle with trocar; d, needle with beveled 

 extremity without trocar. 



• l'ii;3. 1 to U, incluaive, are taken fiom A. Koch's Die I^^ematodcn der Schajlunge. 



