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. 1_a_ 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 2-1/2 inches wide.

PLATE XXIV. Instruments used in diseases following parturition.

Fig. 1. Luethi'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 cache. 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blade in the sheath and withdrawn with the blade protruding.

Fig. 3. Spring teat dilator, about one-half natural size, for dilating the
milk canal.

Fig. 4. Ring teat syphon, for withdrawing milk when the teat is sore or
injured.

Fig. 5. Gutta-percha bougie, for dilating the opening of the teat.

Fig. 6. Truss applied to calf for umbilical or navel hernia. (From
Fleming's Veterinary Obstetrics.)

Fig. 7. Armatage's iron clamp for umbilical or navel hernia. When this
clamp is applied care must be taken not to include a portion of the bowel.

* * * * *

[Illustration: PLATE XXII.

SUPPORTS FOR PROLAPSED UTERUS.]

[Illustration: PLATE XXIII.

SUPPORTS FOR PROLAPSED UTERUS.]

[Illustration: PLATE XXIV.

INSTRUMENTS USED IN DISEASES FOLLOWING PARTURITION.]

DISEASES OF YOUNG CALVES.

By JAMES LAW, F. R. C. V. S.,

_Formerly Professor of Veterinary Science, etc., in Cornell University._

SUSPENDED BREATHING.

The moment the circulation through the navel string is stopped the blood of
the calf begins to become overcharged with carbon dioxid (CO_{2}), and
unless breathing is speedily established death prom