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.
Epidermis. This is a slide of thick skin in which you have already identified the tissues in the epidermis, dermis, and hypodermis. Just for review, what tissue type is in each layer: The following photo shows a slide of thick skin. 2) Identify the layers of the epidermis on the photo. Identify the basal layers and the stratum spinosum. The following photographs show higher magnifications of the stratum lucidum and keratinizing layers.