The book is a comprehensive study of British travel in the United Provinces during the Stuart Period and largely based on journals and correspondence never before published.
The Rose Cross deals with the interaction between two movements of thought in eighteenth-century Germany: the philosophy of the Enlightenment, and the complex of ideas known as Rosicrucian.
This is a study of the intellectual history of the Andalusi Christians (alias Mozarabs) of Spain based on their Arabic and Latin polemical writings against Islam, c.