The tumor arises from the cornea or the sclerotic, covered by its respective membrane, with a growth of hair upon its surface.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
It may be viewed as a part of the sclerotic specially modified to permit the passage of light into the interior of the eye.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
At the line of junction of the sclerotic and cornea the iris passes across the interior of the eye.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler