Fig. 1. Crupper, strap truss. (From Hill's Bovine Medicine and Surgery.)
Fig. 2. Renault's rope truss. The rope for this truss should be from 25 to 30 feet long and about the thickness of the little finger.
Plate XXIII:
Fig. 1. Cow to which Delwart's rope truss has been applied.
Fig. 1a shows the loop of Delwart's truss.
Fig. 2. Zundel's labial sutures. These consist of two wires passed through the lips of the vulva in a horizontal direction, and two additional wires passed through the loops at the ends of the horizontal wires in order to hold them in place.
Fig. 3. Iron truss for holding the vagina or uterus in place after calving. The cords are passed through the eyes at the corners of the triangular iron; the base of the triangle fits under the tail. The truss is from 5 to 7 inches long and about 2½ inches wide.
Plate XXIV. Instruments used in diseases following parturition.
Fig. 1. Lüthi's perforating sound, for opening the milk canal through the teat when this has become occluded; A, the sound one-half the natural size; B, section of head of sound, natural size, showing cutting edge.
Fig. 2. Bistouri caché. A blade hidden in its sheath which by pressure of the finger may be made to protrude a certain distance. This distance is regulated by the screw near the handle. The instrument is used to open the milk canal when closed up. It is introduced into the milk canal with its blade in the sheath and withdrawn with the blade protruding.