Title: Two essays : one upon single vision with two eyes ; the other on dew : a letter to the Right Hon. Lloyd, Lord Kenyon, and an account of a female of the white race of mankind, part of whose skin resembled that of a negro ; with some observations on the causes of the differences in colour and form between the white and negro races of men
Subjects: Kenyon, Lloyd Kenyon, Baron, 1732-1802, Skin Pigmentation, Binocular Vision, Dew