Copy letter from Herbert Rix, to Professor Newton 'Dear Prof Newton, Dr Foster wished me to send you the enclosed list of titles which he had queried, & upon which he desires your advice as to whether or not they shall be included among the periodicals to be used by the Cataloguers for extracting titles for our new decade of the Catal. of Sci. Papers ['Catalogue of Scientific Papers']. I am, yours faithfully Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 23 December 1889