DESCRIPTION OF PLATES. TO ILLUSTRATE VERMINOUS BRONCHITIS. PLATE VIII.-Left lung of a calf affected with verminous bronchitis. 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 opaque. Clouded (x #). PLATE IX, FIG. 1.-Trans-section of the left lung represented on preceding plate. A considerable portion of the lung tissue is hepatized. Towards the left a bronchus is seen in section, filled with strongyli (x3). FIG. 2.-A large bronchus from the same lung, slit open and showing the openings of three smaller bronchi. Bundles of worms projecting therefrom. PLATE X, FIG. 1.—Strongylus micrurus, about natural size. 4, male; B, female. FIG. 2.-Candal 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 œsophagus a leading into the intestine b. The two unicellular glands of the neck are shown with their enlargement c containing a minute nucleus (x 40). FIG. 4.-4, anterior extremity of a female; a, b, 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 e the flexure of the oviduct and entrance into uterus filled with ova; f, the enlarged posterior portion of the intestine (x 50). FIG. 5.-4, portion of the body of a female near the middle of the body with ova containing fully developed embryos (x 40). B, the ova with the embryos occupying different positions (x 120). FIG. 6.-An adult female filled with ova (x 4). PLATE XI,* FIG. 1.—Strongylus paradoxus, caudal extremity of the male showing a, the bursa; bb, the spicula, hooked at the free extremity. FIG. 2.-Candal extremity of female with pear-shaped vesicle a. FIG. 3.—Pseudalius ovis pulmonalis, female; a, b, c, constrictions; d, caudal extremity; e, mouth (x 50). FIG. 4.-Caudal extremity of the male (x 800); a, spicula forked at b. FIG. 5.-Strongylus filaria, female; a, mouth; b, funnel-shaped insertion of œsophagus into intestine; c c, intestine; d, caudal extremity; e, vulva; ƒƒ, uterus. FIG. 6.-Caudal extremity of male; a, bursa; b, spicula; c, flap-like attachment, and d, conical, blunt extremity of the same; e e, rays of the bursa. FIG. 7.-Syringe used for tracheal injections; a, syringe with glass barrel and graduated piston-rod; b, hollow needle with trocar; d, needle with beveled extremity without trocar. Figs. 1 to 6 inclusive are taken from A. Koch's Die Nematoden der Schaflunge. 12508 A I-19 |