ce of the fetus, and by the use of a
propeller.

PRESENTATION OF BREAST AND ABDOMEN.--This is the reverse of the back
presentation, the foal being extended across in front of the pelvic
opening, but with the belly turned toward the passages and with all four
feet engaged in the passage. (Plate XVI, fig. 2.) The most promising
course is to secure the hind feet with nooses and then push the fore
feet forward into the womb. As soon as the fore feet are pushed forward
clear of the brim of the pelvis, traction is made on the hind feet so as
to bring the thighs into the passage and prevent the reentrance of the
fore limbs. If it proves difficult to push the fore limbs back, a noose
may be passed around the fetlock of each and the cord drawn through the
eye of a rope carrier, by means of which the members may be easily
pushed back.

EMBRYOTOMY.

Embryotomy consists in the dissection of the fetus, so as to reduce its
bulk and allow of its exit through the pelvis. The indications for its
adoption have been furnished in the foregoing pages. The operation will
vary in different cases according to the necessity for the removal of
one or more parts in order to secure the requisite reduction in size.
Thus it may be needful to remove head and neck, one fore limb or both,
one hind limb or both, to remove different parts of the trunk, or to
remove superfluous (monstrous) parts. Some of the simplest operations in
embryotomy (incision of the head in hydrocephalus, incision of the belly
in dropsy) have already been described. It remains to notice the more
difficult procedures which can be best undertaken by the skilled
anatomist.

AMPUTATION OF THE HEAD.--This is easy when both fore limbs are turned
back and the head alone has made its exit in part. It is more difficult
when the head is still retained in the passages or womb, as in
double-headed monsters. The head is secured by a hook in the lower jaw,
or in the orbit, or by a halter, and the skin is divided circularly
around the lower part of the face or at the front of the ears, according
to the amount of head protruding. Then an incision is made backward
along the line of the throat, and the skin dissected from the neck as
far back as possible. Then the muscles and other soft parts of the neck
are cut across, and the bodies of two vertebra (neck bones) are severed
by cutting completely across the cartilage of the joint. The bulging of
the ends of the bones will serve to indicate