Original photographs by Ansel Adams are defined as photographs printed by Ansel Adams from the negatives he made (photographed and developed). Most will range between $4,000 and $70,000.
Keratosis is the term for any condition that is a benign overgrowth  and thickening of the epidermis.
The superficial layer of skin. It is composed of squamous epithelium cells. These are flat scale-like cells that are arranged in layers, called stratified squamous epithelium. The many layers of the epidermis create a barrier to infection.The epidermis does not have a blood supply, so it is dependent on the deeper layers of skin for nourishment. However, the deepest epidermis layer is called the basal layer. These cells are alive and constantly dividing.he many layers of the epidermis create a barrier to infection. The epidermis does not have a blood supply, so it is dependent on the deeper layers of skin for nourishment. However, the deepest epidermis layer is called the basal layer.