to the length of these arteries considered
surgically. Measurements of the abdomen and thorax compared.
Anastomosing branches of the thoracic and abdominal parts of the aorta.

COMMENTARY ON PLATE 26

THE RELATION OF THE INTERNAL PARTS TO THE EXTERNAL SURFACE.

In health and disease. Displacement of the lungs from pleuritic
effusion. Paracentesis thoracis. Hydrops pericardii. Puncturation.
Abdominal and ovarian dropsy as influencing the position of the viscera.
Diagnosis of both dropsies. Paracentesis abdominis. Vascular
obstructions and their effects.

COMMENTARY ON PLATE 27

THE SURGICAL DISSECTION OF THE SUPERFICIAL PARTS AND
BLOODVESSELS OF THE INGUINO-FEMORAL REGION.

Physical causes of the greater frequency of inguinal and femoral
herniae. The surface considered in reference to the subjacent parts.

COMMENTARY ON PLATES 28 & 29

THE SURGICAL DISSECTION OF THE FIRST, SECOND, THIRD, AND
FOURTH LAYERS OF THE INGUINAL REGION, IN CONNEXION WITH THOSE
OF THE THIGH.

The external abdominal ring and spermatic cord. Cremaster muscle--how
formed. The parts considered in reference to inguinal hernia. The
saphenous opening, spermatic cord, and femoral vessels in relation to
femoral hernia.

COMMENTARY ON PLATES 30 & 31

THE SURGICAL DISSECTION OF THE FIFTH, SIXTH, SEVENTH, AND
EIGHTH LAYERS OF THE INGUINAL REGION, AND THEIR CONNEXION WITH
THOSE OF THE THIGH.

The conjoined tendon, internal inguinal ring, and cremaster muscle,
considered in reference to the descent of the testicle and of the
hernia. The structure and direction of the inguinal canal.

COMMENTARY ON PLATES 32, 33, & 34

THE DISSECTION OF THE OBLIQUE OR EXTERNAL,
AND OF THE DIRECT OR INTERNAL INGUINAL HERNIA.

Their points of origin and their relations to the inguinal rings. The
triangle of Hesselbach. Investments and varieties of the external
inguinal hernia, its relations to the epigastric artery, and its
position in the canal. Bubonocele, complete and scrotal varieties in the
male. Internal inguinal hernia considered in reference to the same
points. Corresponding varieties of both herniae in the female.

COMMENTARY ON PLATES 35, 36, 37, & 38

THE DISTINCTIVE DIAGNOSIS BETWEEN EXTERNAL AND INTERNAL
INGUINAL HERNIAE, THE TAXIS, SEAT OF STRICTURE, AND THE OPERATION.

Both herniae compared as to position and structural characters. The
co-existence of both rendering diagnosis difficult. The oblique changing
to the direct hernia