The only cases of grass, or meadow, dermatitis observed in the United States were reported by Corson1 and Robinson.1a Corson observed a weed killer, in the summer of 1933, who exposed himself to the sun and acquired linear vesicles in stripes 6 to 50 mm. in length, which healed with pigmentation. Robinson's patient, a girl aged 15, had a bright red bullous itching eruption on the backs of the hands and forearms, which left dark brown stripes when it healed. The eruption appeared twenty-four hours after she had mowed a lawn.
In Europe many cases have been reported, from nearly all countries, since my first description of the disease in 1926,2 when I reported 40 cases. About the clinical and histologic entity there is no longer any doubt. All authorities agree that it is a new disease belonging to the dermatitis group. There is, however, no unanimity