292 
A. LIAUTARD. 
ular forms, and soon gathering together, take as they increase the 
shape of abnormal vegetations, without suppuration but painful 
to the touch. These tumors are often hairless, as the result of 
the pressure on the hair follicles by the accumulation of the pig¬ 
ment ; still the sebaceous follicles remain and the skin is soft and 
shying. Melanotic growths are also found at the mammae and in 
the sheath, where they often interfere with micturations or with 
general circulation; thus producing swelling of these parts which 
have been mistaken as fore-runners of symptoms of glanders and 
farcy. At times they are found in parts of the body where the 
hairs are abundant, as the base of the ears, the axilla, and are 
then easily detected by the external deformity they produce. 
They are common in the inguinal region, and we have found it 
connected with squirrous cord. They are seen in the parotid 
region, in the internal angle of the eye at the caruncula lacry- 
malis. 
Amongst the most frequent internal melanosis we find those 
of the peritoneal cavity, of the cellular tissue of the pelvic, round 
the rectum and in the sub-lumbar region, near the large blood 
vessels and the sacral plexus. Tumors at the peritoneum are 
generally small and in the mesentery, specially the great, assume 
the beautiful aspect presented in this specimen. 
Melanosis of the intestines proper are rare and then generally 
s mall. Rodet* says he has found them on the small intestine and 
the external walls of the colon. Gurlt has also seen them on 
the intestine mucous membrane of the cow. Trousseau and Le¬ 
blanc have found them in the kidney; still they are said to be 
rare. In the liver, they have been seen amongst horses and dogs, 
in the first as big as the fist, sometimes superficial, sometimes in 
the parenchyma of the organ. When they exist in the liver they 
are seen also in the spleen, as they are reported by Levrat and 
Bruckmuller, who reports a case where the spleen weighed no 
less than forty-five pounds. In the pancreas they are also found 
when the other parenchymatous organs of the abdomen, viz: the 
liver and the spleen, contain them. In the thoracic cavity mel¬ 
anoma have been principally observed in the lymphatic glands at 
*Zunclel, 
