. Bovine obstetrics. Veterinary obstetrics. 230 . BOVINE OBSTETRICS lower one can be pushed to and fro. Two jaws, the lower one of which is movable, and which can be closed by pushing the rod ahead, are found on the one end. The noose is now placed between the jaws of the instrument and introduced. It proved itself useless in practice. Already in 1793 Eberhard Fig. 31.—Gunther's Porte-cord. had made for the same purpose a turning stick (Kehrstock). This instrument consists of a whale-bone with a knob of ivory on the one end; a vertical groove in the knob receives the rope or web. Binz's obstet
. Bovine obstetrics. Veterinary obstetrics. 230 . BOVINE OBSTETRICS lower one can be pushed to and fro. Two jaws, the lower one of which is movable, and which can be closed by pushing the rod ahead, are found on the one end. The noose is now placed between the jaws of the instrument and introduced. It proved itself useless in practice. Already in 1793 Eberhard Fig. 31.—Gunther's Porte-cord. had made for the same purpose a turning stick (Kehrstock). This instrument consists of a whale-bone with a knob of ivory on the one end; a vertical groove in the knob receives the rope or web. Binz's obstetrical probe (fig. 32) is a flat, curved stick, 45 cm. in length, with an eye in the curved end. It is mainly used to cord the head when deviating backward, or the legs. Fig. 33.—Obstetrical Sound. when incompletely extended. The rope or noose is run through the eye, and carried behind and around the retained part, until the loop can be grasped with the hand and the in- strument retracted. Gunther's long hook (fig. 33) is used in the same way as the porte-cord. Fig. 33.—Gunther's Curved Porte-cord. Darreau's porte-cord (figs. 34 and 34a) is 80 to 85 cm. long, the rod having a diameter of 6 to 7 mm. Binz, Schaack, Kueff constructed porte-cords to secure the head, which can be dispensed with in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bruin, M. G. de; Wyman, Willy Edward Alexander, tr. New York, W. R. Jenkins
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