Biographia Juridica, a Biographical Dictionary of English Judges, appeared shortly after his death.
He was educated under Dr. Charles Burney, his mother's brother-in-law, at Greenwich, and remained there until he was articled in 1804 to his father, whose partner he became in 1811.
[3] On retiring from professional practice he devoted himself to collecting materials for the history of the legal profession, which he lent to Lord Campbell for his Lives of the Chancellors.
In recognition Lord Langdale, to whom the first two volumes were dedicated, procured for him a grant of the entire series of publications of the Record Commission.
[2] In 1865 Foss published Tabulæ Curiales, and the printing of his Biographia Juridica—an abbreviation of his Judges of England—was in progress when he died.
He was an original member of the Archæological Institute, and contributed a paper on Westminster Hall to its publication, Old London, 1867.
He contributed to Archæologia papers ‘On the Lord Chancellors under King John,’ ‘On the Relationship of Bishop FitzJames and Lord Chief Justice Fitzjames,’ ‘On the Lineage of Sir Thomas More,’ and ‘On the Office and Title of Cursitor Baron of the Exchequer.’ For the Kent Archæological Association, which he helped to found, he wrote a paper ‘On the Collar of S.S.’; and a privately printed volume of poems, ‘A Century of Inventions,’ appeared in 1863.