Plate 23. (X400, H&E) Transepidermal damage with disorgan- zation of the malpighian layer. Stratum granulosum absent. Malpighian and basal laver only two or three cells thack with exfoliation of piement outward toward parakeratinized zone adjacent to stratum corneum: Some piement laden chroma-— tophores and histiocytes in pars papillaris of corium. Latter 1s edematous and infiltrated Ly moderate numters of lymphocytes, and mononuclear hagocytes. Capillary \ oops indistinct. Case 2%. 22 days post-exposure. Plate 24. (X100, (H&E) Transepidermal damage with disorganization of the malighian layer. Slight parakeratosis. Migration or exfoliation outward of pigment. Loose lamination of stratum corneum. Pigment laden chromatophores and histiocytes in superficial pars paprllaris of corium. Marked cellular infiltration and edema of pars papillaris. Slight telangiectasis of superficial pars reticularis, Case 63