s membrane and are especially to be found within the nasal passages
and uteri of cattle. They can reach a size of three fists, are smooth or
velvetlike, or may be lobulated, broad at the base, and consist of a
glassy-looking mass of connective tissue, which usually shows a distinctive
yellowish color. Being homogeneous and elastic, the moist, jellylike tissue
composing the tumor may be easily destroyed or crushed. When cut through,
these tumors soon collapse from the loss of their fluids. They sometimes
inclose elliptical cavities filled with slimy, gelatinous masses.

_Treatment._--Extirpation.

SARCOMA.

This is a malignant tumor after the type of embryonal tissue, and consists
of several varieties, such as the round cell, spindle cell, giant cell,
alveolar, and melanosarcoma. They grow by preference in connective tissue
and are quite vascular. Sarcomas appear either as single or multiple
nodules, varying in size from a hempseed to a hazelnut, or else as a
moderate number of tumors of the size of hen eggs. Their surface, at first
smooth, later becomes lumpy and tuberous from internal degeneration.
Secondary nodules may appear near the primary tumor. The outer skin is not
involved so soon as in cancer, nor does ulceration follow so rapidly.
Sarcoma is about the most frequent and dangerous tumor that is found in
cattle. It occurs in young animals, and is found on the serous membranes,
in the glandular organs, and on the outer skin, especially of the neck and
shoulders--in fact, in nearly every tissue and in almost every part of the
body. This tumor is often found in places exposed to traumatisms and at
seats of scars, or of irritations from pressure and inflammation.

_Treatment._--Treatment should consist in early and complete removal by the
knife, including one-half or three-quarters of an inch of the sound tissue
adjoining the tumor. If there is a possibility that sarcomatous tissue
still remains, either cauterize the wound with a hot iron or powder the
walls of the cavity with arsenious acid.

CANCER (CARCINOMA).

Cancers are tumors of epithelial tissues and are malignant. There are
several varieties of cancers, such as hard, soft, and colloid, but only
those growing on the surface will be mentioned here. These malignant tumors
of the superficial organs develop primarily from the epidermis or from the
glands of the skin. They appear secondarily as spreading infections from
milk glands, thyroids, anal glands