“…After completion of our study in this series of cases of psoriasis, an excellent extensive article by MacCardle and the Engmans 1T on the histology of neurodermatitis appeared and has been followed by their interesting observations on the histologie spectrographic and microincineration studies in regard to neurodermatitis. 31 We have not had the opportunity of making spectrographic or microincineration studies in regard to either neuro¬ dermatitis or psoriasis.32 Comparision of their histologie studies on localized or generalized neurodermatitis and on psoriasis with our studies is difficult, since they apparently depended on different types of fixatives and on Masson trichrome stain, which we employed in only a few cases. We are nevertheless in entire accord with their observation that it may be difficult to distinguish localized from general¬ ized neurodermatitis and that the typical psoriatic lesion is readily distinguished histologically from neurodermatitis.…”