ABSTRACT
IN the years 1901 and 1902, being employed by H.M. Government to carry out researches in the Portuguese Colonial and other Archives for material bearing upon the Boundary Arbitration1 between Great Britain and Brazil re garding the delineation of the southern frontier of British Guiana, one of the documents for which I was seeking was the long-lost2 Journal of the famous Jesuit missionary, Samuel Fritz, who spent 37 years of his life in converting and civilizing the Indian tribes of the Upper Amazon. In 1901 my efforts to find the Journal were fruitless, but coming across references to M SS in the Biblioteca Publica at Evora in connection with Jesuit missionary enterprise in the Upper Amazon in the very period of Samuel Fritz’s activities, I obtained permission on my second visit to Portugal in 1902 to investigate the contents of these documents.
